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?

Guest Jun 1, 2017

#1**+2 **

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.

helperid1839321
Jun 1, 2017