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Using Cavaliers principle explain why these two stacks of pennies have the same volume

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Step-by-step explanation:

Cavalieri's principle states that if two solids have the same altitude and the same cross-sectional area, then their volumes must be equal.

Now, looking at the stack of pennies, we see that they have the same altitude (the height of the mound is equal for both) and the same cross-sectional area ( the area of the coin is the same for all); thereofre, the Cavalieri's principle says that the volume of the two stacks of pennies must be the same.

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