Question

Find the circumference of a circle that has an area of 452.16 square meters.( use the 3.1416 as the value of tt.)

Answer 1

A = πr²
452.16 = πr²
r = √452.16 ÷ π
r = 11.99694 meters

C = 2πr
C = 2π(11.99604)
C = 75.3791
C = 75.38 meters