Area of a circle 12ft diameter?

Area = pi radius squared

Algebraically

A = pi r^(2)

The radius is one half the diiameter . Since the diameter is 12 ft , then the radius is 6 ft .

pi = 3.141592..... (a constant)

Substituting #

A = pi (6ft)^(2)

A = 3.141952... 36 sq.ft.

A = 113.097.... sq. ft.