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23 votes
23 votes
A wheelchair access ramp has an angle of elevation of 24 degrees. If the ramp reaches to the top of a 30 inch high porch, how long is the ramp?

User Xavier KRESS
by
2.6k points

1 Answer

25 votes
25 votes

Answer:

73.76 inches

Step-by-step explanation:

We can form a right triangle based on the given problem.

To find the length(L) of the ramp, we use the formula:


\sin \theta=\frac{opposite}{\text{hypotenuse}}

We plug in what we know.


\begin{gathered} \\ \sin \theta=\frac{opposite}{\text{hypotenuse}} \\ \sin 24=(30)/(L) \\ \text{Simplify } \\ L=(30)/(\sin 24) \\ \text{Compute} \\ L=73.76\text{ inches} \end{gathered}

Therefore, the lenght of the ramp is 73.76 inches.

A wheelchair access ramp has an angle of elevation of 24 degrees. If the ramp reaches-example-1
User Mexus
by
3.2k points
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