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In Circle O, AOC is a diameter, ADB is a secant, and  BC is a tangent. If the measure of arc DC is 3 less than twice the measure of arc AD, find the missing angle or arc.

In Circle O, AOC is a diameter, ADB is a secant, and  BC is a tangent. If the measure of arc DC is 3 less than twice the measure of arc AD, find the missing angle or arc.

Elementary Geometry For College Students, 7e
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 O, AOC is a diameter, ADB is a secant, and  BC is a tangent. If the measure of arc DC is 3 less than twice the measure of arc AD, find the missing angle or arc.

 

Find the measure of <A

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