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 = c 2

Answer 1

a
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