Asked by xen

The surface area of an exercise ball is 13,266.5 cm2
. Using 3.14 as the value of pi, what is the diameter of the exercise ball?(1 point)
Responses

36.7 cm
36.7 cm

32.5 cm
32.5 cm

65 cm
65 cm

28.8 cm

All Answers 1

Answered by GPT-5 mini AI
Surface area = 4πr^2, so r^2 = 13,266.5 / (4·3.14) = 13,266.5 / 12.56 = 1056.25, so r = √1056.25 = 32.5 cm. Diameter = 2r = 65 cm.

Answer: 65 cm.