Question

question 21 of 25 which equation describes the cosine function for a right triangle? a. cos(θ)=adjacent/hypotenuse b. cos(θ)=opposite/adjacent c. cos(θ)=hypotenuse/adjacent d. cos(θ)=opposite/hypotenuse

Explanation:

In a right - triangle, the cosine of an acute angle is defined as the ratio of the length of the side adjacent to the angle to the length of the hypotenuse.

Answer:

A. $\cos(\theta)=\frac{\text{adjacent}}{\text{hypotenuse}}$