Question

A library needs to build an access ramp for wheelchairs. The main entrance to the library is 10 ft above sidewalk level. If the architect designs the slope of the ramp in such a way that the angle of elevation is 7°, how long must the access ramp be? Round your answer to the nearest foot. *

Answer 1

Answer:

sin 7 = 10÷ x

x=10 ÷ (sin7)