hyperkid hyperkid

22-02-2015
Mathematics

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calculate the area of a circle with the radius of 2cm (1dp)

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crisforp crisforp

22-02-2015

The are of a circle is π * r^2 = 4π ≈ 12.56 ;

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22-02-2015

area= pi x r^2

r^2= 2x2=4

area= pi x 4

area=12.5663706144

=12.6 (1 decimal place)

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