haileewilder13 haileewilder13

22-03-2017
Mathematics

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

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nicanichole nicanichole

22-03-2017

hi the answer is706.5mm

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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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