There is a circular flower bed, its perimeter is 18.84 meters, what is the floor area of this flower bed?

There is a circular flower bed, its perimeter is 18.84 meters, what is the floor area of this flower bed?

18.84 ﹣ 3.14 ﹣ 2 = 3M
This garden covers an area of 3.14 × 3 × 3 = 28.26 meters;