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c=TT R

Given the area, the radius = square root (area / Pi).

Given the circumference, the radius = circumf/ 2Pi.

Q: Formula for finding radius of a circle?

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The formula to get the area of a circle ("R" being the radius of the circle). Radius means the distance from the center of the circle to the edge.It means pi times radius squared which is the formula for finding the area of a circle.

2[4(radius)/3(pi)]

The formula for finding the area of a circle is : pi(r) squared. So, that answer would be 13.69cm multiplied by pi, which is nearest to 3.14.

If you are given the radius of the circle, you can use the formula: diameter = 2*radius If you are given the circumference of the circle, you can use the formula: diameter = circumference/pi

If you have the circumference: circumference = (pi) * diameter diameter = circumference / (pi) If you have the area: area = (pi) * radius * radius radius = square_root(area / pi) radius = diameter / 2 diameter = 2 * square_root(area / pi)

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Area of circle = pi*(radius)2

The formula for the circumference of a circle is pi * diameter or (2 radius.)

2*pi*radius = perimeter or circumference of a circle radius = circumference/2*pi

The formula to get the area of a circle ("R" being the radius of the circle). Radius means the distance from the center of the circle to the edge.It means pi times radius squared which is the formula for finding the area of a circle.

The area of a circle with a known radius can calculated using the following formula where r is the radius : A = Pi(r)2

Hell are you talking about?!? A radius is a dimension of a circle! A rectangle has no stinking radius!

Area of a circle = pi*radius squared

Area of a circle = pi*radius2

this is called finding the circumference. The formula is 2*pie*radius

Pi * R squared, where R is the radius of the circle in question

It is the formula for finding the circumference of a circle which is the same as 2*pi*radius

2[4(radius)/3(pi)]