Question

You lean a 16 foot ladder against the wall. If the base is 4 feet from the wall, what angle does the ladder make with the ground?

Answer 1

`75.52^@`

Explanation:

`cosx =` the length of the adjacent side `/` the length of the hypotenuse.

`=> cosx=4/16=0.25`

`=> x=cos^-1(0.25)=75.52^@`