Mathematics

Question

Suppose a triangle has sides a, b, and c, and let  be the angle opposite the side of length a. If cos > 0, what must be true?

 A.b2 + c2 > a2 B.a2 + b2 > c2 C.b2 + c2 < a2 D.a2 + b2 = c2

1 Answer

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