What is the interior diameter of the basketball rim_________________________?
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Answer: B. 45cm
Explanation
The standard interior diameter of a regulation basketball rim is exactly 45 centimeters. This precise opening allows the ball to pass through while requiring high shooting accuracy. Governing bodies enforce this 45 cm diameter to maintain uniform scoring difficulty worldwide. Basketball rims are constructed from solid steel and attached securely to the backboard structure. A net is suspended below the rim to slow the ball momentarily as it passes through. Breakaway rim mechanisms are used today to absorb player dunking force without bending permanently.
Shooters must aim for the center of the 45 cm rim to ensure swish shots or clean bounces. Gymnasium installers measure rim diameters carefully to meet official high school and pro standards. Consistent rim sizing ensures that scoring records remain comparable across different eras and venues. Option 40cm is too narrow and would drastically increase scoring difficulty for players. Option 48cm is too wide and would make shooting baskets much easier than intended. Option 50cm exceeds the official measurement and violates standard basketball equipment rules.
- Subject
- Physical Education
- Category
- Physical Education
- Topic
- —
- Difficulty
- medium
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