Question

An 18 foot ladder touches a building 14 feet up the wall.

What is the angle measure to the nearest degree of the ladder to the ground?
A. 51 degrees
B. 79 degrees
C. 39 degrees
D. 38 degrees

Answer 1

sinx=14/18
x=sin^-1(14/18)=51 degrees
ans is A

Answer 2

check the picture below.

make sure your calculator is in Degree mode.