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what is pi r square?

is the formula to calculate the area of circle, where r is the radius of the circle and is a constant whose value is .

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it is the formula to find the area of a circle

area of circle = PI r2  or PIr2

where PI = PI = 3.141592... or 22/7

and r means radius of circle

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it is the formula for finding the area of a circle

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IT IS THE FORMULA TO FIND AREA OF THE CIRCLE.

 PI  = 22/7 OR 3.14

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it is used to find the circumfrence of a circle. Pi = 22/7 or 3.14

THE FORMULAS ARE

NOTE:- C-circumfrence

               R-radius

               D-diameter

c=2 pi r

d=pi R sq.

r=c*7/2*22

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it is the formula for finding the circumfrence of a circle... the formulas include 

radius , circumfrence and diameter..

circumfrence - 2pi r

radius - c*7/2*22

diameter- pi r sq...

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