Question

PLEASE HELP! URENT!

What is the measure of ∠R ?



Enter your answer as a decimal in the box. Round only your final answer to the nearest hundredth.

m∠R=
°

Answer 1

R = 48.59 degrees

Explanation:

We know that

sin theta = opposite / hypotenuse

sin R = 30/40

sin R = 3/4

Taking the inverse sin of each side

sin^-1 (sin R) = sin ^-1(3/4)

R = 48.59037789

To the nearest hundredth

R = 48.59 degrees