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A wheelchair ramp is 4.2 m long. It rises 0.7 m. What is It's angle of inclination to the nearest degree?

Guest Apr 30, 2016

+23247

+5

Best Answer

In the right triangle formed by the floor, the rise, and the ramp, the rise is the opposite side and the ramp is the hypotenuse.

sin(angle) = opposite side / hypotenuse ---> sin(angle) = 0.7 / 4.2 ---> sin(angle) = 0.166667

---> angle = sin^-1(0.166667) = 9.6^o (approximately)

geno3141 Apr 30, 2016

+8

+5

Or to the nearest degree as the question asks, 10°

Vincent Apr 30, 2016

geno3141 · Answer 1 · 2016-04-30T07:25:39

In the right triangle formed by the floor, the rise, and the ramp, the rise is the opposite side and the ramp is the hypotenuse.

sin(angle) = opposite side / hypotenuse ---> sin(angle) = 0.7 / 4.2 ---> sin(angle) = 0.166667

---> angle = sin^-1(0.166667) = 9.6^o (approximately)