Question

Which statement BEST explains why the sine of an acute angle is equal to the cosine of the angles complement?

Answer 1

is there any answer choices i can see? :)

Answer 2

In a right triangle, the sine of one acute angle, A, equals the cosine of the other acute angle, B. Since the measures of these acute angles of a right triangle add to 90º, we know these acute angles are complementary. ∠A is the complement of ∠B, and ∠B is the complement of ∠A.

Explanation: