Find the circumference of the children's ball.
Answer to Problem 3CYP
About 41.3 cm
Explanation of Solution
Given:
A regulation volleyball has a circumference of about 66 centimeters. The ratio of the surface area of that ball to the surface area of a children's ball is approximately 1.6: 1 .
Calculation:
Circumference of a sphere with radius r =
Surface area of a sphere with radius r =
Given ratio of surface area :
So, the circumference of children’s ball is about 41.3 cm.
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