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29 December, 08:09

What is the area of a circle, if it's radius is 2cm?

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  1. 29 December, 08:16
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    25.13cm^2 or 8pi. The radius of a circle is 2 x pi x r^2. R is the radius. 2 x pi x 2^2cm - > 2 x pi x 4cm - > 8cm x pi - > 25.13cm^2. Leaving the answer in terms of pi would be 8pi.
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