We know that the sum of measures of a pair of supplementary angles is 180 °. From the figure we can see that ∠ D B A and ∠ D B C are adjacent angles. ∠ D B A and ∠ D B C form a line A C or line D B intersects line A C at point B. The angle measured on a straight line is equal to 180 °. Thus ∠ D B A and ∠ D B C are adjacent ...Vertical angles theorem or vertically opposite angles theorem states that two opposite vertical angles formed when two lines intersect each other are always equal (congruent) to each other. When the sum of the measures of two angles is 180°, the angles are called supplementary angles. From the options, 1) considering 95°, 85°x + 45 = 90. Subtract 45 from each side. x = 45. So, the measure of the complementary angle is 45°. Problem 4 : Two angles are supplementary. If one angle is 36° less than twice of the other angle, find the two angles. Solution : Let x and y be the two angles which are supplementary.The complementary and supplementary angles are those that add up to 90 degrees and 180 degrees respectively. They can either be adjacent or non-adjacent. When complementary angles can be considered as two parts of a right angle, the supplementary angles are the two parts of a straight angle or a 180-degree angle. The difference between ...Question 455884: Two angles are supplementary if their sum is 180 degrees. The larger angle measures four degrees more than seven times the measure of a smaller angle. If x represents the measure of the smaller angle and these two angles are supplementary, find the measure of each angle. Answer by Gogonati(855) (Show Source):The supplementary comments on an application are additional insights about skills and experience that relate specifically to the job for which the individual is applying. These com...A Linear Pair is two adjacent angles whose non-common sides form opposite rays. ∠1 and ∠2 form a linear pair. The line through points A, B and C is a straight line. ∠1 and ∠2 are supplementary. If two angles form a linear pair, the angles are supplementary. A linear pair forms a straight angle which contains 180º, so you have 2 angles ...Same side interior angles are two angles that are on the same side of the transversal and on the interior of (between) the two lines. Figure \(\PageIndex{1}\) Same Side Interior Angles Theorem: If two parallel lines are cut by a transversal, then the same side interior angles are supplementary. Figure \(\PageIndex{2}\)Top answer: Since two angles are supplementary, the sum of their measures is 180 degrees. Therefore, an equation Read more. Two supplementary angles have the following angle measures: m∠TUV= (2x−25)° and m∠VUW=110° . What is an equation to solve. Top answer: ok everyone chill, the answer is 2x+85=180 yw Read more.Supplementary angles means that two angles add up to 180 degrees. Step 2. Let x be one angle and let x+12 be its supplementary angle and one angle measures 12 degrees more than the other Step 3. Then x+x+12=180 or 2x+12=180. Subtracting 12 from both sides of the equation yields 2x=168. Dividing by 2 to both sides yields x=84 degrees.Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.Vertical angles are angles opposite each other where two lines cross. ... I'm not exactly sure what you mean but yes, you can subtract 180 minus the angle given to find the unknown angle. (when they are adjacent/supplementary) Same rule applies for complementary, except you use 90 degrees instead. However, you can't subtract the given angle ...Two angles are supplementary if the sum of their measures is @$\begin{align*}180^\circ\end{align*}@$. Two angles that together form a straight angle will always be supplementary. Click here to learn more about angles!Jan 11, 2023 · This means our two problematic angles are actually supplementary, which is a great hint. Together, their two equations must add to 180° : 2 y − 7 ° + y − 8 ° = 180 ° 2y−7°+y−8°=180° 2 y − 7° + y − 8° = 180° Two angles are supplementary if they add up to 180 degrees. let the angles be x and y so x + y = 180 let x be the larger angle and y the smaller angle y = 70 + 4x substitute this into x + y = 180 x + 70 + 4x = 180 5x + 70 = 180 5x = 110 x = 22 degreesSuppose that the two angles are supplementary. Find expressions for the supplements, using the expressions provided in Exercise 28, parts a to c. For two complementary angles, find an expression for the measure of the second angle if …Consecutive Interior Angles/Co-interior Angles: The angles formed inside the two parallel lines but one side of the transversal is the consecutive interior angles. The angles are supplementary to each other, that means the sum of these two angles is 180°. ∠r + ∠w = 180° and ∠s + ∠x = 180°4 years ago Try this: Complementary angles add up to 90° - example: 15° & 75° are complementaryJan 11, 2023 · Properties of supplementary angles. Supplementary angles have two properties: Only two angles can sum to 180°- three or more angles may sum to 180° or π \pi π radians, but they are not considered supplementary. The two angles must either both be right angles, or one must be an acute angle and the other an obtuse angle. Try it! Angle R has a measure of 80 degrees. Find the measure of an angle that is supplementary to angle R. Two angles are supplementary. Twice one angle is equal to the other angle minus 36. Find both angles. The measures of two supplementary angles are (3x - 10) and (6x + 100). What is the measure of the smaller angle?4 years ago Try this: Complementary angles add up to 90° - example: 15° & 75° are complementaryThe supplementary comments on an application are additional insights about skills and experience that relate specifically to the job for which the individual is applying. These com...Question 944959: Two angles are supplementary. The measure of one angle is 5 greater than 40% of the other. Find the measures of both angles. Answer by MathLover1(20597) (Show Source): You can put this solution on YOUR website! Two angles and are supplementary and it means they add up to °.However, just because two angles are supplementary does not mean they form a linear pair. In the diagram below, ∠ABC and ∠DBE are supplementary since 30°+150°=180°, but they do not form a linear pair since they are not adjacent. Linear pairs in polygons. Linear pairs are often used in the study of the exterior angles of polygons: In a ...Chase A. asked • 12/05/20 Two angles are supplementary. One angle is 20 more than 3 times the other. Find the measure of the angles.AboutTranscript. The sum of the interior angle measures of a triangle always adds up to 180°. We can draw a line parallel to the base of any triangle through its third vertex. Then we use transversals, vertical angles, and corresponding angles to rearrange those angle measures into a straight line, proving that they must add up to 180°.Two angles are supplementary. One is 15 degrees more than four times the other. Find the measures of the angles. What is the smaller angle? What is the other angle?. Let x = smaller angle then 4x+15 = other angle. x + 4x+15 = 180 (definition of supplementary) 5x+15 = 180 5x = 165Ally M. asked • 10/17/20 Two angles are supplementary. One angle is 36 degrees bigger than the other. What is the measure of the bigger angle?Practice What are supplementary angles? Answer: Supplementary angles are angles whose sum is 180 ° No matter how large or small angles 1 and 2 on the left become, the …Learn how to find unknown angles in triangles and intersecting lines. We use concepts like supplementary angles (angles that add up to 180°), vertical angles (opposite angles made by two crossing lines), and exterior angles (angles outside a triangle). There are lots of ways to think about this problem. Created by Sal Khan.Terms in this set (18) Two non-adjecent angles formed by two intersecting lines. They are across from one another and MUST be congruent. If two angles are supplementary to the same angle then they are congruent. Ex. If angle 1 + angle 2= 180, and angle 2 and angle 3=180 then angle 1 is congruent to angle 3.Angles with sides that form two pairs of opposite rays. 1.) They must be in the same plane. 2.)They must have a common vertex. 3.) They must have a common side. 4.) They must have NO interior points in common. Study with Quizlet and memorize flashcards containing terms like Adjacent Angles, Complementary angles, Supplementary angles and more.When the two angles add to 180°, we say they "Supplement" each other. Supplement comes from Latin supplere, to complete or "supply" what is needed. Spelling: be careful, it is not "Supplimentary Angle" Complementary vs Supplementary. A related idea is Complementary Angles, they add up to 90°62^@, 118^@ supplementary angles add to 180^@. if one supplementary angle is denoted as x, then the angle 6 less than twice its supplement can be written as 2x - 6. adding them together, x + 2x - 6 = 180. this can be solved algebraically. x + 2x - 6 = 180 3x - 6 = 180 3x - 6 = 3(x-2) 3(x-2) = 180 x - 2 = 60 x = 62 the smaller angle is 62^@. the …Jan 11, 2023 · Properties of supplementary angles. Supplementary angles have two properties: Only two angles can sum to 180°- three or more angles may sum to 180° or π \pi π radians, but they are not considered supplementary. The two angles must either both be right angles, or one must be an acute angle and the other an obtuse angle. Try it! Jul 24, 2020 ... Two Supplementary angles differ by 34 degrees. Find the Angles । Rd Sharma class 9 page no 8.6.Report a problem. Do 4 problems. Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.We examine three types: complementary, supplementary, and vertical angles. Definitions: Complementary angles are two angles with a sum of 90º. Supplementary angles are two angles with a sum of 180º. Vertical angles are two angles whose sides form two pairs of opposite rays. We can think of these as opposite angles formed by an X. The Lesson: Definition of supplementary angles: Two Angles are Supplementary when they add up to 180 degrees. Notice that together they make a straight angle. m∠A +m∠B =180°.....(1) We are given : m∠A is five times the sum of the m∠B plus 7.2° m∠A = 5(m∠B +7.2) ..... (2) Plugging value of angle A from equation (2) in (1),The first angle is 30 degrees. The second angle is 150 degrees. Here's why: The first angle will be expressed as x. Since the second angle is 120 degrees greater than the first, it will be expressed as (x + 120). Because they're supplementary, they'll add up to 180: x + (x + 120) = 180 Combine like terms. 2x + 120 = 180 Subtract 120 from both sides. 2x = 60 Divide by 2 to isolate for x. x = 30 ...Two angles are supplementary which means their measures add up to 180 degrees. If the measure of one angle is 80% of the other, we can set up an equation to represent this relationship. Let the smaller angle be X, and the larger angle would then be 80% of X or 0.8X. The sum of these angles is 180 degrees: X + 0.8X = 180. Combining like terms ...No, two acute angles cannot be supplementary angles because according to the definition of acute angle an angle is called an acute angle if its measure is less than90 0.And if two acute angles are added then their sum will be less than 180 0 which contradicts the definition of the supplementary angle. The sum of the measures of the supplementary angle is 180 0.(ii) If two angles are supplementary, then the sum of their measures is _____. (iii) Two angles forming a linear pair are _____. (iv) If two adjacent angles are supplementary, they form a _____. (v) If two lines intersect at a point, then the vertically opposite angles are always _____. (vi) If two lines intersect at a point, and if one pair of ...The definition of supplementary is two angles whose sum is 180° are supplementary. The angles can be either adjacent (share a common side and a common vertex and are side-by-side) or non-adjacent. Example 1. Given m 1 = 45° and m 2=135° determine if the two angles are supplementary. 45° + 135° = 180° therefore the angles are supplementary.Larger angle hatA = 155^@ For two angles to be supplementary, sum of these two angles equals 180^@. Let the two angles be hatA, hatB Given hat A + hatB = 180^@ Also hat A = ((6 * hatB )+ 5)^@ i.e. ((6 * hatB )+ 5) + hatB = 180 7*hatB = 180 - 5 = 175 hatB = 175 / 7 = 25^@ Hence larger angle hatA = 180 - 25 = 155^@Top answer: Since two angles are supplementary, the sum of their measures is 180 degrees. Therefore, an equation Read more. Two supplementary angles have the following angle measures: m∠TUV= (2x−25)° and m∠VUW=110° . What is an equation to solve. Top answer: ok everyone chill, the answer is 2x+85=180 yw Read more.A supplementary angle is when the sum of any two angles is 180°. The supplementary angles always form a linear angle that is 180° when joined. In other …The supplement of an angle of 110° is the angle of 70° and the supplement of an angle of 70° is the angle of 110° Observations: (i) Two acute angles cannot be supplement of each other. (ii) Two right angles are always supplementary. (iii) Two obtuse angles cannot be supplement of each other. Worked-out Problems on Supplementary Angles: 1.Solution. Two supplementary angles make up a straight angle, so the sum of the measurements of the two angles will be 180°. You know the measurement of one angle. To find the measurement of the second angle, subtract 48° from 180°. The measurement of the other angle is 132°. Example.25/10/2021 · High School. Two angles are supplementary. The measure of one is 80% of the measure of the other. Find the measures of both angles. Answer.This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. See Answer. Question: Two angles are supplementary. The larger angle is 2 degrees larger than the smaller angle. Find the measure of both angles. Two angles are supplementary. The larger angle is 2 degrees larger than ...We know that the sum of measures of a pair of supplementary angles is 180 °. From the figure we can see that ∠ D B A and ∠ D B C are adjacent angles. ∠ D B A and ∠ D B C form a line A C or line D B intersects line A C at point B. The angle measured on a straight line is equal to 180 °. Thus ∠ D B A and ∠ D B C are adjacent ...Supplementary angles are two angles whose angle measures sum to 180 degrees. For example, if one angle is 120 degrees and another angle is 60 degrees, the two angles are supplementary. Complementary angles are two angles whose angle measures sum to 90 degrees.Top answer: Since two angles are supplementary, the sum of their measures is 180 degrees. Therefore, an equation Read more. Two supplementary angles have the following angle measures: m∠TUV= (2x−25)° and m∠VUW=110° . What is an equation to solve. Top answer: ok everyone chill, the answer is 2x+85=180 yw Read more.Oct 12, 2018 ... To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW The angles are supplementary and larger is twice the smaller.Two angles that sum to a straight angle (1 / 2 turn, 180°, or π radians) are called supplementary angles. [14] If the two supplementary angles are adjacent (i.e., have a common vertex and share just one side), their non-shared sides form a straight line .angle the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. complementary and supplementary angles complementary angle Two angles are complementary angles if the sum of their measures is equal to 90° supplementary angleThe second two angles are not supplementary and do not form a straight line. Like with complementary angles, we might be given a {eq}50^{\circ} {/eq} angle and asked for its supplement. To find ...The answer is 57° and 123°. A supplementary angle is an angle that equals 180°. So now we know that the two angles added together will give us 180°, we can use this to check at the end. Let's call the smaller angle x We also know that the larger number is 66° more than the smaller. This gives us: x + x + 66° = 180°. x is equal to the smaller angle, and the second angle is ( x) - the ...2(84+50) = 268 User: Two angles are supplementary the first angle measures 40° what is the measurement of the second angle Weegy: Two angles are supplementary. The first angle measures 40 . 140? is the measurement of the second angle. User: June bought a new pair of glasses the Lindses have six sides the lenses were in the shape of aTable 1.1 The Greek alphabet. In elementary geometry you learned that the sum of the angles in a triangle equals 180 , and that an isosceles triangle is a triangle with two sides of equal length. Recall that …Sep 25, 2013 ... ... two parallel lines, determine the supplementary angle, and linear pairs, corresponding angle, consecutive angles. let's learn how to ...Learn what are supplementary angles, how to find them, and how they differ from complementary angles. See the properties of supplementary angles, such as the S of supplementary angles stands for the S straight line, and the two angles are congruent if they are supplementary. See examples of supplementary angles and how to use the supplementary angle theorem.Learn what are supplementary angles, how to find them, and how they differ from complementary angles. See the properties of supplementary angles, such as the S of supplementary angles stands for the S straight line, and the two angles are congruent if they are supplementary. See examples of supplementary angles and how to use the supplementary angle theorem. Since two angles are supplementary, their measures add up to 180 degrees. So, we have the equation: m∠QRS + m∠SRT = 180. Substituting the given measures: (x+40) + x = 180. Combining like terms: 2x + 40 = 180. Subtracting 40 from both sides: 2x = 140. Dividing by 2: x = 70.Two angles are supplementary angles if the sum of their measures is 180. Find two supplementary angles such that the measure of the first angle is 18 degrees less than three times the measure of the second. What is the measure of the first and second angle. star. 5/5. heart. 1. verified.Two angles are supplementary if their sum is 180. One angle measures two times the measure of a smaller angle. If x represents the smaller angle and these two angles are supplementary, find the measure of each angle. ---smaller = x supplement = 180-x----Equation: 180-x = 2x 180 = 3x x = 60 (smaller) 180-x = 120 (larger) ===== Cheers, Stan H.What is the measurement of the second angle? Weegy: Two angles are supplementary. This means they add up to 180 degrees. If the first angle measures 60 , the second angle measures 180 minus 60 = 120 . |Score .9576|Janet17|Points 45014| User: The gazebo in the park is an octagon. Each side of the gazebo is 4 feet long.When the two angles add to 180°, we say they "Supplement" each other. Supplement comes from Latin supplere, to complete or "supply" what is needed. Spelling: be careful, it is not "Supplimentary Angle" Complementary vs Supplementary. A related idea is Complementary Angles, they add up to 90°When the two angles add to 180°, we say they "Supplement" each other. Supplement comes from Latin supplere, to complete or "supply" what is needed. Spelling: be careful, it is not "Supplimentary Angle" Complementary vs Supplementary. A related idea is Complementary Angles, they add up to 90°Find the measures of the angles Two angles are supplementary one angle is 4 degrees less than three times the other find the measures of the angles. Follow • 2One of the two supplementary angles is 8 degrees less than three times the other. Find the measure of each angle? The sum of seven angles is 465 degrees. What is the sum of their respective supplementary angles? The angles A and B are supplementary. The measure of angle A is (4 x + 20) degrees and the measure of angle B is (6 x - 40) degrees.If two angle measures add up to \(90^{\circ}\), then we say the angles are complementary. Here are three examples of pairs of complementary angles. Figure \(\PageIndex{11}\) If two angle measures add up to \(180^{\circ}\), then we say the angles are supplementary. Here are three examples of pairs of supplementary angles. Figure \(\PageIndex{12}\)Two angles are supplementary which means their measures add up to 180 degrees. If the measure of one angle is 80% of the other, we can set up an equation to represent this relationship. Let the smaller angle be X, and the larger angle would then be 80% of X or 0.8X. The sum of these angles is 180 degrees: X + 0.8X = 180. Combining like terms ...Angles with sides that form two pairs of opposite rays. 1.) They must be in the same plane. 2.)They must have a common vertex. 3.) They must have a common side. 4.) They must have NO interior points in common. Study with Quizlet and memorize flashcards containing terms like Adjacent Angles, Complementary angles, Supplementary angles and more.Question 457940: two angles are supplementary. one is 87 degrees more than twice the other. Find the measures of the angles. Find the measures of the angles. Answer by rfer(16322) ( Show Source ):If you’re an avid angler, purchasing a fishing boat is likely on your radar. While new boats may have their appeal, there are significant benefits to consider when it comes to purc...Two angles are supplementary if their sum is 180 degrees. The larger angle is 4 degrees more than seven times the measure of the smaller angle. Let I represent the measure of the smaller angle and these two angles are supplementary, find the measure of each angle. Smaller angle measures degrees. Larger angle measures degrees. Aortion Hols.Supplementary angles are those angles that measure up to 180 degrees. For example, angle 130° and angle 50° are supplementary because on adding 130° and 50° we get 180°.... Some of the examples of supplementary angles are: 120° + 60° = 180° 90° + 90° = 180° 140° + 40° = 180° 96° + 84° = 180° Different Types of Angles. Zero ...Two angles are supplementary if their sum is 180 degrees. The larger angle is 4 degrees more than seven times the measure of the smaller angle. Let I represent the measure of the smaller angle and these two angles are supplementary, find the measure of each angle. Smaller angle measures degrees. Larger angle measures degrees. …If 3 times the supplement of an angle is subtracted from 7 times the complement of the angle, the answer is the same as that obtained from trisecting a right angle. What is the supplement of this angle? Two angles are supplementary. One angle is 5 degrees less than four times the other.Two supplementary angles equals 180 degrees. So, . Why is it 3x + 30, you ask? because 2x + 30 is only one of the supplementary angles, so we have to have another x, which is the smaller one. 3x + 30 = 180. Subtract 30 on each side and divide 3 on each side, and you'll be left with x = 50. So the smaller angle is 50, so obviously 180 - 50 = 130 ...Question 455884: Two angles are supplementary if their sum is 180 degrees. The larger angle measures four degrees more than seven times the measure of a smaller angle. If x represents the measure of the smaller angle and these two angles are supplementary, find the measure of each angle. Answer by Gogonati(855) (Show Source):That angle is formed when CF and EB intersect with each other. And four angles are formed. The one question, FGB, these two angles that are adjacent to it, it shares a common ray. And then the vertical angle, the one that sits on the opposite side. So this angle, this angle right over here, which is angle EGC. Or you could also call it angle CGE.Yes, two right angles are always supplementary. Two angles are supplementary if the sum of their measures is @$\begin{align*}180^\circ\end{align*}@$. As the two right angles add up to exactly 180° (90°+90°), two right angles are always supplementary.Feb 5, 2022 ... The larger of two\r\nsupplementary angles exceeds the smaller by 18 degrees. Find them. Class: 10 Subject: MATHS Chapter: PAIR OF LINEAR ...
Question 452683: Two angles are supplementary if the sum of their measures is 180 degrees. The measure of the first angle is 18 degrees less than two times the second angle. Find the measures of each angle. I need the whole steps please!!!!! i need this answer ASAP THANK U Answer by Love math(28) (Show Source):. Indian actors and actresses in hollywood
Two lines are parallel if and only if the two angles of any pair of consecutive interior angles of any transversal are supplementary (sum to 180°). Proposition 1.28 of Euclid's Elements , a theorem of absolute geometry (hence valid in both hyperbolic and Euclidean Geometry ), proves that if the angles of a pair of consecutive interior angles ...However, Wang et al. used Purler and Huyou 19, two parents with significant differences in branch angle, to fine map the F 2 population using BSA combined with QTL-seq technology, and successfully screened the branch angle-related gene BnaYUCCA6 (Wang et al., 2016). Based on this, we believe that QTL mapping using self-crosses with significant ...Vertical angles can be supplementary or complementary. When the angles are across from each other where the two lines intersect, they are vertical angles. If the two angles have a sum of 180 ...Since ∠D and ∠E are supplementary angles, their measures add up to 180°. Therefore, we have the equation: Now that we have the value of x, we can find the measure of angle ∠F. ∠F is a vertical angle with ∠D, so they have the same measure. Therefore, ∠F = ∠D = (4x + 8)° = (4 (31) + 8)° = 124°. Therefore, the measure of angle ...To bundle newspapers for recycling, place two pieces of long twine at right angles in a wagon, then put the stack of newspapers on top of it. Expert Advice On Improving Your Home V...60^o Angle x is twice as big as Angle y As the are supplementary, they add up to 180 This means that; x + y = 180 and 2y = x Therefore, y + 2y = 180 3y = 180 y = 60 and x = 120. Geometry . ... Two angles are supplementary. The larger angle is twice as large as the smaller angle. What is the measure of the smaller angle?Chase A. asked • 12/05/20 Two angles are supplementary. One angle is 20 more than 3 times the other. Find the measure of the angles.Supplementary angles are two angles with measures that have a sum of 18 0 ∘ 180^{\circ} 18 0 ∘.For the supplementary angles in the figure, the measure of the larger angle is 2 4 ∘ 24^{\circ} 2 4 ∘ greater than the measure of the smaller angle. Write and solve a system of equations to find these measures.Solution. Two supplementary angles make up a straight angle, so the sum of the measurements of the two angles will be 180°. You know the measurement of one angle. To find the measurement of the second angle, subtract 48° from 180°. The measurement of the other angle is 132°. Example.Among the two supplementary angles the measure of the larger angle is 36 ∘ more than the measure of smaller. Find the measures of the angles. Find the measures of the angles. Q.As long as they add up to 180 ∘, the two angles are considered supplementary. Now, for the two angles to be congruent and at the same time …Supplementary angles add up to 180 ∘. Congruent angles have the same measure. So, 180 ∘ ÷ 2 = 90 ∘, which means two congruent, supplementary angles are right angles, or 90 ∘. Example 5. Find the measure of an angle that is a supplementary to ∠ M R S if m ∠ M R S is 70 ∘. Because supplementary angles have to add up to 180 ∘, the ...Yes, a parallelogram with four right angles is known as a rectangle. In a rectangle, each pair of co-interior angles are supplementary, because two right angles add to a straight angle, so the opposite sides of a rectangle are parallel. This means that a rectangle is a parallelogram.Supplementary angles sum to 180^o Write the equation for the sum of the two angles ... x+(4x-5)=180 Solve for x ... 5x=185 x=37^o 180-37=143^0 So, the smaller angle is 37^o and the other angle is 143^o hope that helped. ... If two angles are supplementary, then they are a linear pair of angles. Is this true or false?Vertical Angles. When two lines intersect, the opposite angles are called vertical angles, and vertical angles have equal measure. For example, Figure 10.32 shows two straight lines intersecting each other. One set of opposite angles shows angle markers; those angles have the same measure. The other two opposite angles have the same measure as ... Vertical angles can be supplementary or complementary. When the angles are across from each other where the two lines intersect, they are vertical angles. If the two angles have a sum of 180 ....