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The formula for an area of a circle is the greek symbol "pi" times the radius squared.

A = π * r2

r = radius

π = 3.14

Now, your radius is given to you in millimeters. Generally answers are given in meters. 7 mm (millimeters) is equal to .007 m (meters).

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Q: What is the area of a circle if the radius is 7 mm?
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