# What is the area of a circle with circumference of 9.42 inches?

Jul 19, 2015

I found: $7.06 {\text{in}}^{2}$

#### Explanation:

The circumference $C$ is given as:
$C = 2 \pi r$
Where $r$ is the radius;
$\pi = 3.14$;

so $r = \frac{9.42}{2 \cdot 3.14} = 1.5 \text{in}$

we can use this information to find the area $S$ as:

$S = \pi {r}^{2} = 3.14 \cdot \left({1.5}^{2}\right) = 7.06 {\text{in}}^{2}$