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Penny has a diameter of approximately 18 mm what is the area of the penny to the nearest square millimeter

Penny has a diameter of approximately 18 mm what is the area of the penny to the nearest square millimeter
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2 votes
Penny has a diameter of approximately 18 mm what is the area of the penny to the nearest square millimeter

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User Ben Rudolph
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2 Answers

2 votes
254.34 or 254 is the area
answered
User Xaxxus
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8.8k points
4 votes
Area of a circle is πr². r=9mm (half of the diameter).

So the area is 81π ≈ 254 mm²
answered
User Ryan Kohn
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8.3k points
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