Chapter 0.7, Problem 11E

To determine

To evaluate: the reduced length of the photo.

Answer to Problem 11E

The reduced length must be 4. 5inches .

Explanation of Solution

Given information :

It is given that, a photo that is 4 inches wide by 6 inches long must be reduced to fit in a space 3 inches wide.

In the given question, it can be seen that the ratio of the sides of original photo is equal to the ratio of the sides of reduced photo.

So, the diagram is shown below,

  

  $\begin{array}{l}\frac{4inches}{3inches}=\frac{6inches}{x\text{inches}}\\ x=\frac{3\times 6}{4}\\ x=4.5inches\end{array}$

So,

The reduced length must be 4. 5inches .