Question

Find the missing side labeled x. Round to the nearest tenth.

Answer 1

C. 20.8

Explanation:

Reference angle = 32°

Opposite side length opposite to reference angle = 13

Adjacent side length = x

We would apply the trigonometric function, TOA. Which is:

Tan 32 = Opp/Adjacent

Tan 32 = 13/x

Multiply both sides by x

x × Tan 32 = 13

Divide both sides by Tan 32

x = 13/Tan 32

x = 20.8043489

x = 20.8 (nearest tenth)