Question

What is the radius of a circle with an area of 113.04 cubic inches? Use 3.14 for pi.

Answer 1

Answer: 6 inches.

Step-by-step explanation:

1. You must use the formula for calculate the area of a circle, which is shown below:

$A=3.14r^{2}$

2. You know the area of the circle, therefore, you can solve for the radius, as following:

$3.14r^{2}=A\\r^{2}=\frac{A}{3.14}\\r=\sqrt{\frac{A}{3.14}}$

3. Now, you must substitute the value of the area into the equation above. Then, you obtain the following result:

$r=\sqrt{\frac{113.04in^{2}}{3.14}}\\r=6in$