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The rim is actually about twice the diameter of a regulation Basketball. In the NBA, the official ball is made of leather and has a circumference of 30 inches (76 cm) and a diameter of 9 inches (23 cm).Which also means,the rim's diameter is 18 inches.

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15y ago
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15y ago

The diameter of a standard basketball rim is 18 inches.

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12y ago

The diameter of the rim is 18 inches.

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14y ago

18 "

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Q: What is size of standard basketball rim?
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