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OpenStudy (silver):
Right triangle ABC has three sides with lengths AB = 119, BC = 169, CA = 120. Find the value of cos C. A. 169/120 B. 120/169 C. 119/120 D. 120/119
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jhonyy9 (jhonyy9):
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jhonyy9 (jhonyy9):
the law of cosine say that cos of an angle is equal adjacent side divide hypotenuse in case of your exercise cos C = AC / BC cos C = 120/169 so choice B. is right sure hope helped understandably easy
OpenStudy (saksh1998):
yes its b
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