Question 459840
Dimensions of a Quarter. The circumference of a quarter is 7.85cm. What is the diameter? Radius? The area?
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Circumference = (pi)d
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7.85 = (pi)d
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Diameter = 7.85/3.14 = 2.5 cm.
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Radius + (1/2)(2.5) = 1.25 cm
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Area = (pi)r^2 3.14*1.25^2 = 4.91 sq cm
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Cheers,
Stan H.
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