SOLUTION: A ramp goes up to the loading dock of a manufacturing company. The length of the ramp is 144 inches. The horizontal distance (from the base of the ramp to a point on the ground dir

Algebra ->  Trigonometry-basics -> SOLUTION: A ramp goes up to the loading dock of a manufacturing company. The length of the ramp is 144 inches. The horizontal distance (from the base of the ramp to a point on the ground dir      Log On


   



Question 974972: A ramp goes up to the loading dock of a manufacturing company. The length of the ramp is 144 inches. The horizontal distance (from the base of the ramp to a point on the ground directly below the top of the ramp) is 115 inches. What is the angle of elevation of the ramp? Round to tenths.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Length is hypotenuse and 144 inches
horizontal distance is 115 inches.
cosine is adjacent side /hypotenuse
cosine theta is 115/144= 0.7986
arc cos=37.0 degrees.