Math
posted by Brandi .
using the expression area of a circle = 3.14r^2 detemine how much of the floor in Barbara's room will be covered by a rug with a diameter of 8 ft.
I know the answer is 50.24 ft but I wasn't sure if I'm supposed to write it as 50.24 ft. or 50.24 ft^2
thanks....

50.24 ft^2
Area is always expressed in square units.