Chapter 0, Problem 48PRT

To determine

Circumference and Area of circle.

Answer to Problem 48PRT

  $Circumferenceofcircle=50.28cm$

  $Areaofcircle=201c{m}^2$

Explanation of Solution

Given information:

  

Formula used:

Circumference of circle= $2\pi r$

Area of triangle= $\pi r^2$ .

As we can see in the above figure diameter of circle is 16cm therefore radius of circle will be 8 cm i.e. r=8

  $\begin{array}{l}Circumferenceofcircle=2\pi r\\ \\ Circumferenceofcircle=2\times \frac{22}{7}\times 8\\ \\ Circumferenceofcircle=\frac{352}{7}\\ Circumferenceofcircle=50.28cm\end{array}$

  $\begin{array}{l}Areaofcircle=\pi r^2\\ \\ Areaofcircle=\frac{22}{7}\left(8\right)\left(8\right)\\ \\ Areaofcircle=\frac{1408}{7}\\ \\ Areaofcircle=201c{m}^2\end{array}$