Radius times two (r x r)
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A= Area of the circle¶= Pi (About 3.14)r= Radius squared (Radius times radius)3.14 * Radius squared
Radius squared is half of the diameter multiplied by itself. Example: diameter is 6 inches, radius is 3 inches (half of diameter), radius squared is 9 inches (radius multiplied by itself 3 x 3 = 9).
The radius of a circle with an area of 35 mm squared is 3.34mm
It is the formula used in finding the area of a circle which is pi times radius squared
circumference of a circle = 2*pi*radius area of a circle = pi*radius squared