Question

Find the area

A. 54 in


B. 36 in


C. 18 in


D. 324 in


(In pie)

Answer 1

A circle with a radius of 18 inches has an area of 1,017.88 square inches, so here is what I did to get the final answer. A = πr2 where pi is the ratio of the circumference of a circle to its diameter and r is the radius. π = 3.1416 So then A = π182 = 324π = 1017.88 in2 (2dp)
So the Answer you want would be D. 324in

Answer 2

area of a circle = pi r^2

radius = 18

so R62 = 18^2 = 324

since you want the answer in pi it would be 324PI

so the answer is 324