Question

A boy walks 165 feet up a ramp having a 30(deg) inclination. How high is he standing from the ground?

Answer 1

`82.5\ ft`

Explanation:

see the attached figure to better understand the problem

In the right triangle ABC

`sin(30\°)=(h)/(165)`

`h=165*sin(30\°)`

`h=165*(1/2)=82.5\ ft`