How to Find Circumference of a Circle Using C=2πr Formula

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A circle is a flat figure with a curved surface. The term "circle" comes from the Latin word "circulus," which means "little ring."

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A circle is a two-dimensional object made up of a group of points at the same distance (radius) from the fixed point (centre) on the plane.

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The origin, or centre of the circle, is a fixed location, and the radius is the fixed distance between the points from the origin.

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- The length of a circle's boundary is known as its circumference. - It's also known as a circle's perimeter.

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Circumference of a Circle Formula

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Circumference = 2πr units

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Example 1

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Example 2

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How to Find Circumference of a Circle Using C=2πr Formula

A circle is a flat figure with a curved surface. The term "circle" comes from the Latin word "circulus," which means "little ring."

Circle

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A circle is a two-dimensional object made up of a group of points at the same distance (radius) from the fixed point (centre) on the plane.

Definition of a Circle

The origin, or centre of the circle, is a fixed location, and the radius is the fixed distance between the points from the origin.

- The length of a circle's boundary is known as its circumference. - It's also known as a circle's perimeter.

Circumference

Circumference of a Circle Formula

The circumference of a circle is defined as the whole length of its boundaries.

Circumference = 2πr units

Where 'r' is the circumference of the circle and (Pi) is the mathematical constant having a value of 3.14.

Example 1

Calculate the circumference of a circle whose radius is 8cm

Example 2

Find the radius if the circumference of a circle is 440cm?