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The average volume of a 20 inch beach ball is 800 cubic inches of air. A beach ball is a sphere so the formula to figure out the amount of air need to fill it is 4 pi times the radius cubed divided by three.

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9y ago
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15y ago

beach balls come in every size from hand-sized to 3 ft wide! cow partieieiieeieieieieieieieieieeieieieiesssssssssssssssss!!!!!!!!!!!!!!!!!

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14y ago

Beachballs can be in any size atall. Usually 20-70 inches.

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Q: How big is a beach ball?
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