In circle of figure, chords AB and CD are congruent. If arc BA equals 10x+5 and arc CD equals 12x-21, then measure of arc AB is?

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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In circle of figure, chords AB and CD are congruent. If arc BA equals 10x+5 and arc CD equals 12x-21, then measure of arc AB is?

 

A
B
D
с
Transcribed Image Text:A B D с
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Follow-up Question

Choices are:
a. 135°
b. 75°
c. 125°
d. 151°
e. none of above

Please confirm is your result is OK. Thanks

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