answer: 86°
explanation:
we can assume the ground makes a 90° angle with the wall. We can use primary trig ratios to determine the angle of inclination, which is between the ladder and the ground.
The hypotenuse is the length of the ladder, 30ft, and the adjacent side of our theta angle, (the angle we’re looking for) is 2ft.
Use the ratio Cosine and set up the equation
cosx = 2/30
cosx = 0.066667
x = 86°
