Chapter 2.5, Problem 15P

Solve each problem. Round to the nearest tenth, if necessary. Use 3.14 for pi.

What is the width of a rectangle with length $14\text{cm}$ and area $161{\text{cm}}^2$?

To determine

To find: the width of the given rectangle.

Answer to Problem 15P

The width of the rectangle $\text{=11}\text{.5 cm}$ .

Explanation of Solution

Given information:

The rectangle has length $=14\text{ cm}$ , area $=161{\text{ cm}}^2$

Calculation:

Area of the rectangle $=\text{length × width}$

  $\begin{array}{l}161=14\times \text{ width}\\ \text{width}=\frac{161}{14}\\ =11.5\end{array}$

Hence, the width of the rectangle $\text{=11}\text{.5 cm}$ .