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how do you work out area of circle

asked in maths



siasl74 answers:

The area of a circle is pi (3.141etc...) multiplied by the square of the radius


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sdgasdgadfh answers:

Area=πr^2
make sure you use bodmas, square the radius before you multiply it by pie


Supplement from 01/07/2009 04:21pm:

where
π = pie and
r = radius, this is half the diameter


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Messerwisser answers:

Sometimes illustrated this way


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