
Mark M. answered 10/30/20
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Mathematics Teacher - NCLB Highly Qualified
62 = 72 + c2 - 2(7)(c) cos 101°
72 = c2 + 62 - 2(c)(6) cos B
C = 180° - A - B
Or
sin 101° / 6 = sin B / 7
C = 180° - 101° - B
c / sin C = 6 / sin 101°