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Basketball Equipment

What is the diameter circumference or radius of a basketball?


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2016-10-29 06:48:05
2016-10-29 06:48:05
  • The Men's Size 7 regulation basketball has a circumference between 29.5-30 inches. It weighs 20-22 ounces, and has a diameter of 9.39 inches.
  • The Women's Size 6 regulation basketball has a circumference between 28.5 and 28 7/8 inches. It weighs 17.5-19.5 ounces and has a diameter of 9.07 inches.
  • The Junior's Size 5 basketball has a circumference between 27.25 to 27.75 inches. It weighs 16.6-18 ounces and has a diameter of 8.7 inches. It is recommended for boys and girls under 12 years old (junior league).
  • The mini Size 3 basketball has a circumference between 22 to 22.5 inches. It weighs 10-11 ounces and has a diameter of 7 inches. It is recommended for small children (age 5-8)

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A men's basketball has a radius of 19.3cm (7.5in) and a circumference of 76cm (30in).

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Diameter = radius * 2 Circumference = pi * diameter.

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Circumference is pi times diameter. Diameter is circumference divided by pi. Diameter is twice the radius. Radius is half the diameter.

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The diameter and radius of a circle if the circumference is 37.68 are:Diameter = 11.99Radius = 5.997

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Diameter = circumference/pi Radius = circumference/2*pi


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