Tuesday, July 30, 2013

CIRCLE PERIMETER-2


Find the perimeter of the circle below






Solution

Diameter = 2xr =2x70=140

So, D=140mm

Perimeter = ∏ x D


                = 22 x 14070
                    71

                = 22 x 70


                = 1540



Hence perimeter is 1540 mm. 




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