circumference
the distance around a circle
Circumference refers to the distance around the outside of a circular object or shape. To find the circumference of a circle, you need to use the formula:
Circumference = 2 π r
Where π is a mathematical constant approximately equal to 3.14, and r is the radius of the circle, which is the distance from the center of the circle to the edge.
Alternatively, you can use the formula:
Circumference = πd
Where d is the diameter of the circle, which is the distance across the circle through the center.
For example, if you have a circle with a radius of 5 inches, you can calculate the circumference using the first formula:
C = 2(3.14)(5) = 31.4 inches
Or you can use the second formula:
C = 3.14(2)(5) = 31.4 inches
Therefore, the circumference of the circle with a radius of 5 inches is 31.4 inches.
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