Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.2: The Law Of Cosines
Problem 11E
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If AB parallel to CD and angle ABD=80°, what the measure of arc BC?

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B
с
Transcribed Image Text:A B с
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