A 25-ft ladder leans against a building so that the angle between the ground and the ladder is 70°. How high does the ladder reach up he side of the building? Round to three decimal places.

Answer 1

25 is the hypotenuse of a right triangle. sin70 = h/25 where h= how high the ladder reaches on the building

h=25sin70 = 25(.940)= 23.492 ft