SOLUTION: Use Law of Cosines to prove the measures of angles A, B, and C in the triangle below are equal. Then find the exact value of cos A and explain why that value implies mA = 60�. htt

Question 892175: Use Law of Cosines to prove the measures of angles A, B, and C in the triangle below are equal. Then find the exact value of cos A and explain why that value implies mA = 60�.
https://wca.sooschools.com/media/g_geo_ccss_2013/11/geo_10a_17_10_triangle.gif
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

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