George has a large circular table with a circumference of 18 feet. What is the approximate area of the table?

Answer 1

C = pi * d
18 = 3.14d
18/3.14 = d
5.732 = d

5.732/2 = r
2.867 = r

A = pi * r^2
A = 3.14 * 8.2
A = 25.75 square feet

Answer 2

56.52

Answer 3

108 ft2