Question: the circumference of a circle if the area is 300 square centimeters?
Answer: 84.74 cm. The circumference of a circle if the area is 300 square centimeters. Area = pi*r^2 = 3.14*r^2 , area = 300 , r^2 = 300/3.14 = 95.5414 , r = 9.77cm , circumference =2 *pi*r =2*3.14*9.77 = 61.38 cm.