Question

A 20-foot ladder leans against a wall so that the ladder's angle of elevation is 46°. Find x, the distance from the base of the ladder to the building.
x = 28.79 ft.
= 14.39 ft.
= 43.23 ft.
x= 13.89 ft.

Answer 1

Adjacent = hypotenuse · cos(angle). So x = 20·cos(46°) ≈ 20·0.694658 = 13.8932 ≈ 13.89 ft.

Answer: x = 13.89 ft.