Chapter 13.2, Problem 22WE

To determine

To find how far out from the building will the ramp start.

Answer to Problem 22WE

Ramp start is $270\text{ in}\text{.}$ far apart from building.

Explanation of Solution

Given:

A wheelchair ramp is to be built at the town library. If the entrance to the library is $18$ inch above ground and the slope of the ramp is $\frac{1}{15}$ .

Calculation:

Consider the figure given below

  

Let the distance between building and ramp start be $x$

So,

  $\begin{array}{l}\text{slope}=\tan \theta =\frac{18}{x}=\frac{1}{15}\\ \frac{18}{x}=\frac{1}{15}\\ x=18\times 15=270\text{ in}\text{.}\end{array}$

Therefore , ramp start is $270\text{ in}\text{.}$ far apart from building.