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A circular ring is to be stamped out with a hole in the middle. The hole will have a diameter of 42 inches as shown in the picture below. About how big is the area of the ring?
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Sep 22, 2021
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A circular ring is to be stamped out with a hole in the middle. The hole will have a diameter of 42 inches as shown in the picture below. About how big is the area of the ring?
Mathematics
middle-school
Duc Vu Nguyen
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The area is Pi times 21 squared
Chyyran
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Sep 26, 2021
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Chyyran
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