Angles A and B are supplementary. If mZB = 126°, what is the measure of angle A ?

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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Angles A and B are supplementary. If mZB = 126°, what is the measure of angle A ?
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