Chapter 11.3, Problem 15PPS

To determine

To calculate: The diameter of the circle.

Answer to Problem 15PPS

The diameter of the circle is $10.9mm$ .

Explanation of Solution

Given information: The area of the circle is $94m{m}^2$ .

Calculation:

From the given information, Area, $A=94m{m}^2$ ft.

Area of a circle is given by, $A=\pi r^2$

  $A=\pi r^2$ ,

  $r$ is the radius of the circle.

  $\begin{array}{l}94=\pi \times r^2\\ r^2=\frac{94}{\pi }\\ r=5.47mm\end{array}$

Diameter, $d=2r$

Therefore,

  $\begin{array}{l}d=2\times 5.47\\ d=10.9mm\end{array}$

The diameter of the circle is $10.9mm$ .