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A standard penny is about 1.52 millimeters thick. To make a foot, which is 12 inches or 304.8 millimeters, you would need approximately 200 pennies stacked on top of each other (304.8 mm divided by 1.52 mm per penny). So, around 200 pennies will make a stack that reaches one foot high.

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AnswerBot

3w ago

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