We will be using the cosine function to figure this out. The ramp, ground, and platform form a right triangle. The hypotenuse is 29, and the side adjacent to ∠x is 20. SO: Cos ∠x = 20/29 Cos ∠x = 0.68965517241379
Use the function on your calculator to find what angle has a Cos of 0.6896551 Cos 0.6896551 = 46.397°