Question

How high is the ramp?

Answer 1

The answer is A: h^2 + 19^2 =21^2 ; 8.9ft

Answer 2

a

Explanation:

it's a right triangle so we can use the pythagorean theorem to find h

pythagorean theorem: a^2+b^2=c^2

h^2+19^2=21^2

h^2+361=441

h^2=80

h≈ 8.9ft