1. Given: LABE is a right angle.Prove: 24 is complementary to 2DAB3EFCStatementsReasons1. ZABE is a rightangle2. mLABE = 90°1.2.3. Angle AdditionPostulate4.4.5. Vertical AnglesTheorem6.6.7. Substitution Propertyof Equality7.8. 4 is8.complementary to 22.4.3.5. . Given: 22 is supplementary to 23Prove: 45 is supplementary to 231/23478StatementsReasons1.2.3.5.5.6.81.2.3.4,5.4.6.

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Answered: Angle Addition

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

ChapterP: Preliminary Concepts

SectionP.CT: Test

Problem 1CT

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Consider the following. u = -4j, v = -i - - V3j (a) Find u • v. u• v = (b) Find the angle between u and v to the nearest degree. Need Help? Read It Watch It Consider the following. u = i + 8j, v = 9i – j (a) Find u • v. u • v = (b) Find the angle between u and v to the nearest degree.
Criterion C - Communication The Advanced Version In most modern theaters, the floor is not flat. Using what you learned in your investigation of the simple version, briefly discuss why movie theater floors are built at an angle. Now, assume that the theater has a floor that makes a 25° angle with the horizontal. Everything else about the theater is the same. Find the best row, and compute how much greater your viewing angle is here, compared with the best seat in the theater with the flat floor. Name b 0° BBBB LLLLL 25° a More helpful suggestions: 1. Notice that in the simple version, when x changed our eyes simply moved back horizontally. Now, the height of our eyes also changes when x changes. Look at the triangle formed by the floor and level ground and write the coordinates of your eyes (distance back from the front and up from level ground) in terms of x. 2. Now write expressions for the distance from your eyes to the bottom of the screen (marked a) and eyes to the top of the…
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