3. If mAD = 85° and mBC= 31', find the value of x. 31 (13r- 21)

Trigonometry (MindTap Course List)
8th Edition
ISBN:9781305652224
Author:Charles P. McKeague, Mark D. Turner
Publisher:Charles P. McKeague, Mark D. Turner
Chapter3: Radian Measure
Section3.1: Reference Angle
Problem 96PS: Use a reference angle to find the exact value of cos210o. a. 12 b. 32 c. 22 d. 12
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3. If mAD = 85° and mBC = 31', find the value
of x.
•31
C.
(13r-21)"
Transcribed Image Text:3. If mAD = 85° and mBC = 31', find the value of x. •31 C. (13r-21)"
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