Question

the ____ of an angle is the ratio of the adjacent leg length to the hypotenuse length. a. cosine b. tangent c. sine

Explanation:

In a right - triangle, the cosine of an angle is defined as the ratio of the length of the adjacent side to the length of the hypotenuse. The tangent of an angle is the ratio of the opposite side to the adjacent side, and the sine of an angle is the ratio of the opposite side to the hypotenuse.

Answer:

A. cosine