Question

Find the radius of a circle with an area of 1017.36 in?, Use 3.14 for pi​

Answer 1

area of a circle = πr², where r = the radius of the circle

We can rearrange the formula to solve for r:

$r=\sqrt{\frac{\mathrm{area}}{\pi}}.$

Given an area of 1017.36 in² and using 3.14 for our value for π, the radius of our circle would be:

$r=\sqrt{\frac{\mathrm{area}}{\pi}} = \sqrt{\frac{\textrm{1017.36 }\mathrm{in^2}}{3.14}} \\ r = 18 \text{ } \mathrm{in^2}.$