Question

A rope, staked 20ft from the base of a building, reaches up to the roof and forms an angle of 58 degrees with the ground. How long is the rope, to the nearest tenth of a foot?

Answer 1

37.74 ft

Explanation:

Adj/Hyp = Cos Ф

20/Hyp = Cos 58

Hyp = 20/cos 58

Hyp = 20/0.53

Hyp = 37.74 ft