A ramp used to load vehicles on to a truck is 15 feet long. The ramp makes a 35 degree angle with the ground. Find how high the upper end of the ramp is above the ground

We can use the sine here

sin 35 = h / 15 where h is the ramp height

Multiply both sides by 15

15 * sin 35 = h ≈ 8.6 ft