A wheelchair ramp is built so that it spans a horizontal length of 18 feet and a vertical rise of 1.5 feet. What is the angle of incline of the ramp, rounded to the nearest hund…

Question

asked Jan 8, 2023 137k views

1 Answer

Oleksii · Answer 1 · 2023-01-14T23:05:28+0000

In order to find the angle θ we will use a trigonometric function, in this case, is the tangent

$\tan (\theta)=(OS)/(AS)$

in this case

OS=1.5 ft

AS=18 ft

then we substitute the values

$\tan (\theta)=(1.5)/(18)$

then we isolate θ

$\theta=\tan ^(-1)((1.5)/(18))$
$\theta=4.76$

the correct answer is A