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21 September, 12:16

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

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Answers (2)
  1. 21 September, 12:35
    0
    254.34 or 254 is the area
  2. 21 September, 12:52
    0
    Area of a circle is πr². r=9mm (half of the diameter).

    So the area is 81π ≈ 254 mm²
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