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An American pennys diameter is 19.05mm, and using the formula C = Pi*2r = Pi*d. in circumference it is approximately 59.84 mm
The circumference of a [UK] penny is 63.8 mm approx.

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Q: What is the circumference of a penny?
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What is . A penny has a diameter of 0.75 inches. Find the circumference of a penny. what is the circumference of this qustion?

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Where is the mintmark on an Australian Halfpenny?

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