Question

DO ev ew 1 A local business is installing a ramp to the back door of t the ramp is 80 inches while the vertical height of the ran What is the approximate degree measure of the angle of 2

Answer 1

Using the given information, let's make a diagram

To find x, we just have to use the sine function which is equivalent to the ratio between the opposite leg and the hypotenuse.

$\begin{gathered} \sin x=\frac{20}{80}=\frac{1}{4} \\ x=\sin ^{-1}(\frac{1}{4}) \\ x\approx14 \end{gathered}$

Hence, the angle of elevation is 14°.