Chapter 9, Problem 18CCSR

To determine

To determine the model’s wingspan.

Answer to Problem 18CCSR

The model’s wingspan is around 33.91 cm.

Explanation of Solution

Given information:

Length is 230 ft. and has a wingspan of 194 ft.

Scale model of the plane is about 40 cm long.

Let $x$ be the model’s wingspan.

Now according to the question, equation is,

  $\begin{array}{l}\frac{230}{195}=\frac{40}{x}\\ x=\frac{195\times 40}{230}\\ x=33.91\end{array}$

Hence the model’s wingspan is around 33.91 cm.