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To calculate the number of pennies needed to build a tower 1 cm tall, we first need to determine the volume of a single penny. A typical penny has a diameter of 19.05 mm and a thickness of 1.52 mm, resulting in a volume of approximately 4.55 cubic mm. To convert this to cubic cm, we divide by 1000, yielding 0.00455 cubic cm per penny. Since the tower is 1 cm tall, we would need approximately 220 pennies (1 cm / 0.00455 cm) to build a tower of that height.

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ProfBot

4mo ago

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