Question

Find the value of cos C rounded to the nearest hundredth, if necessary.

Answer 1

<C = 5.52

Explanation:

Comment

You are working with the two legs of a right triangle. That describes the tangent. So you want the inverse tangent which is the angle that you seek.

Tan-1 (opposite / adjacent) = <C

Givens

Opposite = 8

Adjacent = 15

Solution

Tan-1(opposite/adjacent) = <C

Tan-1(8/15) = <C

<C = 5.52