Question

A 40-foot extensions ladder leans against the side of a building. Find the distance h, to thenearest tenth of a foot up the side of the building, if the angle of elevation of the ladder is 52º.

Answer 1

A ladder forms a triangle rectangle , when leans against a wall.

Then angle is 52 degrees

And now calculate L • sin 52 = H

H= 31.52 feet