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How does the doubling of a radius affect the circumference?

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Updated: 10/16/2024

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Q: How does the doubling of a radius affect the circumference?

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

Doubling the radius doubles the circumference.

What happens to the area if the circumference of a circle is doubled?

Denote the original area by A, denote the new area by A', denote the original circumference by C, and denote the new circumference by C'. C=2*pi*r so C'=2C=2*pi*(2r). So doubling the circumference corresponds to doubling the radius. A=pi*r2. A'/A=pi*(2r)2/[pi*r2]=4. So doubling the radius quadruples the area.

How do you find the circumference and area with a radius of 15 inches?

The circumference is found by doubling the radius, and multiplying that number by the value of PI. The formula is Pi x 2rThe area is found by squaring the radius, then multiplying that number by the value of Pi. The formula is Pi x r2 The letter r in both cases represents the radius.

How do you convert basic circumference into radius?

Circumference = 2*pi*radius Radius = Circumference/(2*pi)

What is the formula for finding the circumference with radius?

the circumference is two times the radius, or 2r. so if the radius was 3, the circumference would be 6. if the radius was 4, the circumference is 8.

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Related Questions

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

Doubling the radius doubles the circumference.

How does doubling the radius of a cylinder affect the volume?

Doubling the radius quadruples the volume.

How do you calculate the diameter and the circumference of a circle?

Doubling the radius will give the diameter and times this by pi will give the circumference of the circle.

What happens to the area if the circumference of a circle is doubled?

Denote the original area by A, denote the new area by A', denote the original circumference by C, and denote the new circumference by C'. C=2*pi*r so C'=2C=2*pi*(2r). So doubling the circumference corresponds to doubling the radius. A=pi*r2. A'/A=pi*(2r)2/[pi*r2]=4. So doubling the radius quadruples the area.

How do you find the circumference and area with a radius of 15 inches?

The circumference is found by doubling the radius, and multiplying that number by the value of PI. The formula is Pi x 2rThe area is found by squaring the radius, then multiplying that number by the value of Pi. The formula is Pi x r2 The letter r in both cases represents the radius.

How do you convert basic circumference into radius?

Circumference = 2*pi*radius Radius = Circumference/(2*pi)

Radius from circumference?

The radius is 1/2 of the circumference.

What is the formula for finding the circumference with radius?

the circumference is two times the radius, or 2r. so if the radius was 3, the circumference would be 6. if the radius was 4, the circumference is 8.

How do you find a circumference of a circle if the radius is a fraction?

The circumference is 2*pi*radius. It does not matter if the radius is an integer or a fraction.The circumference is 2*pi*radius. It does not matter if the radius is an integer or a fraction.The circumference is 2*pi*radius. It does not matter if the radius is an integer or a fraction.The circumference is 2*pi*radius. It does not matter if the radius is an integer or a fraction.

How do you find radius with only the circumference?

Circumference = 2*pi*radius So Radius = Circumference/(2*pi)

When given radius how do you find the circumference?

Circumference = 2 * radius * pi (where pi is approx = 3.14159)So Radius = Circumference / (2 * pi)

If the circumference is 34.54 what is the radius?

If the circumference is 34.54, the radius is 5.497211734394065.

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