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Q: What is the equation for the circumference and radius?

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You multiply the radius by pi.

the equation to find circumference is C=2*pi*radius so when you have a radius of 18 inches, C=113.097

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

If the circumference is 24 the radius will be: 3.82

Radius of a circle = circumference/(2*pi)

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The equation for circumference is C=2(pi)(r) where C is the circumference and r is the radius. You can find the radius by plugging in the circumference into this equation and solving the equation.

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 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.

You multiply the radius by pi.

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

2x3.142xr

Circumference = Diameter multiplied by Pi Diameter = Circumference divided by pi Radius = Diameter divided by 2.

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

the equation to find circumference is C=2*pi*radius so when you have a radius of 18 inches, C=113.097

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

Circumference = 2*Ï€*radius = 20*Ï€ feet

By using the equation 2πr that is used to find the circumference, you get 12.56m

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