Question

Suppose the area of a circle is 254.4696 square inches. Whats the radius of the circle? Use pie=3.1416. A. 18 in B. 81 in. C. 9 in D. 9 in 2

Answer 1

radius = 9 inches

Explanation:

`Area = \pi r^(2)`

r = radius

Area = 254.4696 square inches

so we have:

`r^(2) = (A)/(\pi) \\\\r = \sqrt{(A)/(\pi)} \\\\r = \sqrt{(254.4696)/(3.1416)} \\\\r = √(81)`

so we have: r = 9 inches