Q:
# What Is the Formula for the Circumference of a Circle?

**The formula for circumference of a circle is 2πr, where “r” is the radius of the circle and the value of π is approximately 22/7 or 3.14.** The circumference of a circle is also called the perimeter of the circle.

If the radius of the circle is 14 centimeters, then the circumference is 2 x 22/7 x 14, which equals 88 centimeters. If the diameter of the circle is given, then the formula for circumference is πd, where d is the diameter. If the diameter of the circle is given as 21 centimeters, then the circumference is 22/7 x 21, which equals 66 centimeters.

In one revolution of a wheel, the distance covered by the wheel is equal to the circumference of the wheel.

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Q:
## How Do You Find the Perimeter of a Circle?

A: To find the perimeter of a circle, also known as the circumference, plug the dimensions of the circle into the formula ((pi)(d). This formula stands for pi... Full Answer >Filed Under: -
Q:
## How Do You Find the Diameter of a Circle?

A: Find the diameter of a circle with a given circumference by solving for the formula "d=C/pi," where d is the diameter, C is the circumference and pi is 3.1... Full Answer >Filed Under: -
Q:
## What Is the Formula for the Area of a Circle?

A: The formula for the area of a circle is pi multiplied by the radius of the circle squared. The radius of the circle is the length of a straight line stretc... Full Answer >Filed Under: -
Q:
## What Is the Formula for Radius?

A: The formula for a radius is the diameter of a circle divided by two. The radius of a circle is defined as the distance from the middle of a circle to any p... Full Answer >Filed Under: