angle A is 90', angle Bis 90", angle C is 90", and angle D is 90 angle A is 80°, angle B is 80°, angle C is 100°, and angle D is 100° angle A is 70°, angle B is 110, angle C is 70°, and angle D is 110 angle A is 60", angle B is 50°, angle C is 120°, and angle D is 130 angle A is 50", angle Bis 40", angle Cis 120°, and angle D is 150 drilateral ABCD is cyclic with given angle measures. B What is the measure of angle C? 75° What is the measure of angle D? 135° D
angle A is 90', angle Bis 90", angle C is 90", and angle D is 90 angle A is 80°, angle B is 80°, angle C is 100°, and angle D is 100° angle A is 70°, angle B is 110, angle C is 70°, and angle D is 110 angle A is 60", angle B is 50°, angle C is 120°, and angle D is 130 angle A is 50", angle Bis 40", angle Cis 120°, and angle D is 150 drilateral ABCD is cyclic with given angle measures. B What is the measure of angle C? 75° What is the measure of angle D? 135° D
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter2: Parallel Lines
Section2.1: The Parallel Postulate And Special Angles
Problem 29E: In triangle ABC, line t is drawn through vertex A in such a way that tBC. aWhich pairs of s are ?...
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Step 1
As we know that sum of opposite angle of cyclic quadrilateral is 180°
That means in a quadrilateral
Angle A + Angle C =180°
Angle B + Angle D =180°
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