Question

The area of a circle is 2826 square inches. What is the length of its radius?

Answer 1

Follow explanation. The radius is 29.99 inches.
Explanation:
A is area (D is diameter)
$A=\pi \times \frac{D^2}{4}=2826$
$D^2=\frac{11304}{\pi }$
$D^2=3598$ square inches
$D=59.985$ inches(r (radius) is 29.99 inches)