Answer:
The angle of elevation is 25.8°
Explanation:
hypotenuse = 40; adjacent = 36 . The angle of elevation is between the 40 and 36 or the elevation from the street.
Cos x = 36/40 cos x = adjacent ÷hypotenuse
Use the calculator: TI ( 2ndcos(.9) enter
x ≈ 25.8°