or Angles (98) Practice SetWhat is the measure of angle 4?922 123°57*O 145*180O.360*Type here to searchit

Answered: What is the measure of angle 4? 92 3 2…

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

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

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

Chapter6: Circles

Section6.2: More Angle Measures In The Circle

Problem 18E: aHow are R and T related? bFind mR if mT=112. Exercises 18,19

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or Angles (98) Practice Set
What is the measure of angle 4?
92
2 123°
57*
O 145*
180
O.360*
Type here to search
it

Expert Solution

Step 1

Here, we will use angle sum properties of triangle and linear pair of angles.

$∠ 1 + 92 ° = 180 ° (l i n e a r p a i r o f a n g l e s) ∠ 1 = 180 ° - 92 ° ∠ 1 = 88 ° S i m i l a r l y, ∠ 2 + 123 ° = 180 ° (l i n e a r p a i r o f a n g l e s) ∠ 2 = 180 ° - 123 ° ∠ 2 = 57 °$

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