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

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

aaronq · Answer

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$sin\theta=\dfrac{5}{x}$

$cos\theta=\dfrac{7}{x}$

$tan\theta=\dfrac{5}{7}$

$x^2=5^2+7^2$

use one of these to solve for the angle