Encyclopedia > Circumference

Article Content

Circumference

Circumference is the distance around a circle; it can be calculated as:

circumference = 2 π r
circumference = π d

where r is the radius and d is the diameter of the circle.

π is also referred to as Pi.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Islip Terrace, New York

... are made up of individuals and 4.4% have someone living alone who is 65 years of age or older. The average household size is 3.21 and the average family size is ...