Question

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

a- b^2+c^2>a^2
b- a^2+b^2=c^2
c- b^2+c^2 d- a^2+b^2>c^2

Answer 1

b^2+c^2<a^2 just took test

Answer 2

Suppose a triangle has sides a, b, and c let theta be the angle opposite the side of length a. If cos theta < 0 The statement that is true is b^2+c^2>a^2. The answer is letter A.