Sunday, June 9, 2013

Calculate the circumference and area of the circle whose diameter = 14.

We have the diameter d =
14


Then the radius of the circle (r) = d/2 =
7


The circumference (C) =
2*r*pi


                                    =
2*7*22/7


                                     = 44
unit>


The area (a) =
Pi*r^2


                     =
(22/7)*(7^2)


                     =
22*7


                     = 154 square
unit.

at

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