Question

A construction crew has two 100ft. beams with which to form the walls of a tent that needs to be 80ft. high. At what angle do they need to place the beams into the ground in order to form their tent? Round your answer to the nearest tenth of a degree.

A. 14.0 degrees
B. 36.9 degrees
C. 38.7 degrees
D. 53.1 degrees

Answer 1

sin^-1x=80/100
x=sin^-1(80/100)
x=53.1
Answer is D