A wheelchair ramp is 5.3m long and it makes an angle of 12° with the ground. How far above the lower end is the upper end of the ramp?
Trigonometry is, in my opinion, kind of annoying, and is where your problem has its base.
We need to take the sine of 12° to get the ratio of height to length. sin(12) = 0.207911690818
Multiply this by 5.3: 0.207911690818*5.3 = 1.1019319613354.
The upper end of the ramp is 1.1019319613354 meters higher than the lower end.