Q:

The top of a 22-foot ladder rests against the top of an 18-foot wall. If the base of the ladder is on the same ground level as that of wall, what angle does the ladder form with the ground? Express your solution to the nearest degree.

Accepted Solution

A:
use the sine ratio here:-   sin = opposite / hypotenuse so 
sin A =   18/22 

A =  54.9 degrees  

55 to nearest degree