Question

A circle has a radius of 9 ft.

Answer 1

area of circle= (pi)r^2 so
9^2=81;
81*3.14=254.34

Answer 2

Formula for circl area
pi times radius^2
pi=aprox 3.14 in this problem
area=3.14 times radius^2
radius=9
area=3.14 times 9^2
area=3.14 times 81
area=254.34 square feet or
254.34 ft^2