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The diameter of a circle is 18 millimeters. What is the circle's area
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The diameter of a circle is 18 millimeters. What is the circle's area

User Xliiv
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The area of a circle is A=πr^2

The radius of the circle 9mm since 18/2=9

A=πx9^2
=81π
=254.34mm squared
User Eduardo
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