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Doubling the radius doubles the circumference.

Q: How is the circumference of a circle with radius 9 cm related to the circumference of a circle with diameter of 9cm?

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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

radius is half the diameter of a circle.

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

There are four common measurements of a circle, radius, diameter, circumference, and area. Here is how they are related. Diameter is how far across it is at the widest point. Radius is 1/2 of diameter. Diameter X pi = circumference. pi = 3.1416 Area = pir2

The diameter and the radius of a circle with a circumference of 62.8 meters are:d = 19.98mr = 9.99m

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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 diameter and radius of a circle if the circumference is 37.68 are:Diameter = 11.99Radius = 5.997

radius is half the diameter of a circle.

The circumference of a circle equals the diameter times pi. The diameter is two times the radius. So a circle with a radius of 6 would have a diameter of 12, and a circumference of 12pi.

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

The diameter of any circle is twice its radius.

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

There are four common measurements of a circle, radius, diameter, circumference, and area. Here is how they are related. Diameter is how far across it is at the widest point. Radius is 1/2 of diameter. Diameter X pi = circumference. pi = 3.1416 Area = pir2

The circumference of any circle is (pi) x (diameter),and of course, the diameter is double the radius.

The radius and diameter of a circle whose circumference is 25.12 are:r = 4d = 8

The diameter and the radius of a circle with a circumference of 62.8 meters are:d = 19.98mr = 9.99m

diameter=radius squared circumference=pi times diameter