find the area of circle diameter 14.21
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diameter = 2radius
14.21=2*r
r=7.1
area of circle=πr^2
=22/7 * 7 * 7
= 154cm^2
14.21=2*r
r=7.1
area of circle=πr^2
=22/7 * 7 * 7
= 154cm^2
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