Solve the problem.
-A twenty-five foot ladder just reaches the top of a house and forms an angle of 41.5° with the wall of the house. How tall is the house? Round your answer to the nearest 0.1 foot.
A) 18.7 ft
B) 18.8 ft
C) 18.6 ft
D) 19 ft

Question

Quizplus · Accepted Answer

To find the height of the house, use the cosine function: cos(41.5°) = height/25. Solving for height gives height = 25 * cos(41.5°) ≈ 18.7 ft.

Solve the Problem. -A Twenty-Five Foot Ladder Just Reaches the Top of a Top