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Q: What is the equation for determining radius of a circle if you have the circumference?

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the equation for the circumference is Pi * double the radius which is 3.1416 * 15.5 * 2 The circumference of a circle with a radius of 15.5cm is 97.3cm.

The equation for the circumference of a circle is pi times radius squared.

Area of a circle = pi*radius squared Circumference of a circle = 2*pi*radius or diameter*pi

The radius of a circle is circumference/2 pi .

The circumference of circle with radius 12cm is 75.4cm

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the equation for the circumference is Pi * double the radius which is 3.1416 * 15.5 * 2 The circumference of a circle with a radius of 15.5cm is 97.3cm.

the equation for the circumference of a circle is 2*radius*pi, or since the radius is half of the diameter 2*radius=diameter, we can simplify the equation to the circumference of a circle=diameter*pi

The equation for the circumference of a circle is pi times radius squared.

The equation for circumference is 2(3.14)(r) or 3.14(d) where r=radius and d=diameter. The radius of a circle is half of the circumference, or the distance across the interior of a circle.

You multiply the radius by pi.

2x3.142xr

To find the circumference of a circle, use the equation: Circumference = 2*π*radius so when the radius is r, the circumference is 2πr

The circumference of a circle is given by the equation C=2*pi*r (r being the circle's radius). So, the circumference you're looking for is 30.35 cm.

Area of a circle = pi*radius squared Circumference of a circle = 2*pi*radius or diameter*pi

To find the circumference of a circle the equation would be pi multiplied by diameter, or radius squared. the answer would be 31.415 units squared.

The circumference of a circle with a radius of 2.5 is approximately 15.7075. The equation for the circumference of a circle is Circumference = 2πr where r is the radius. In our case, the radius is 2.5. We can approximate π to be 3.1415. So C = 2 * 3.1415 * 2.5, or C ~= 15.7075

The radius of a circle is circumference/2 pi .

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