radius of circle formula

Best Answer: u can use the following formulas to find the radius 1)Area of circle=pi.*(radius)^2 when area is given plug in that value into this formula and u can get the radius 2)radius=diameter/2 when the diameter is given,find the radius by dividing th

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  • Best Answer: u can use the following formulas to find the radius 1)Area of circle=pi.*(rad...
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