Master the Concept of Circumference: Calculating the Distance around Curved Objects and Real-Life Applications

Circumference of a Circle

C= 2pi r

The circumference of a circle is the distance around the edge or boundary of the circle. It is given by the formula:

Circumference = 2 × π × r

where π (pi) is a mathematical constant approximately equal to 3.14, and r is the radius of the circle.

Alternatively, we can use the diameter of the circle, d, in the formula as:

Circumference = π × d

where d = 2 × r.

Note that the units of the radius or diameter must be consistent with each other, and the resulting units of the circumference will also be consistent with them. For example, if the radius is measured in meters, then the circumference will be measured in meters as well.

Circumference is an important concept in geometry, as it helps us calculate the perimeter of a circle and also in measuring the distance around curved objects. It is also used in various real-life applications such as calculating the distance traveled by a wheel, finding the length of a string required to go around a circular object, etc.

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