Question

A painter wants to lean a 30-foot ladder against a wall. Safety guidelines recommend that the distance between the base of the ladder and the wall should be 1/4 of the length of the ladder. To the nearest degree, what acute angle should the ladder make with the ground? Enter only the number

Answer 1

The length of the ladder does not matter. We are told that

cos x = 1/4
x = 75.52°