SOLUTION: if the circumference of a basketball is 28.25 inches, what is its diameter?

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Question 274011: if the circumference of a basketball is 28.25 inches, what is its diameter?
Answer by calegebra(14) About Me  (Show Source):
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C = 2(pi)(radius)
C = 28.25 in
pi = 3.14
radius = ?
radius = C/2(pi)
radius = 28.25/(2)(3.14)
radius = 4.5 in
Diameter = 2 * radius
Diameter = 2 * 4.5
Diameter = 9 in