haileewilder13 haileewilder13
  • 22-03-2017
  • Mathematics
contestada

A coin has a diameter of about 30 millimeters. What is the area of the coin

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nicanichole
nicanichole nicanichole
  • 22-03-2017
hi the answer is706.5mm
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kat224
kat224 kat224
  • 22-03-2017
The diameter / by 2 is the radius and you can find the area by using the equation pi times the radius squared. I was thought to remember the phrase "Pies are square" if that helps at all.
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