Question

Intro to Trig question

The legs of a right triangle measure 5 inches and 7 inches. If theta is the angle between the 5 inch leg and the hypotenuse cos theta ____

A) .81
B) .58
C) .07
D) .71

Answer 1

\(sin\theta=\dfrac{5}{x}\)

\(cos\theta=\dfrac{7}{x}\)

\(tan\theta=\dfrac{5}{7}\)

\(x^2=5^2+7^2\)

use one of these to solve for the angle