Circumference facts for kids

Kids Encyclopedia Facts - Homework Help
Circle - black simple
Circumference of a circle

In geometry, circumference is the distance around a closed curve; for example, a circle. It is a special kind of perimeter.(c=PI x diameter)

c = \pi * diameterfa:پیرامون یک خم بسته

Circumference Facts for Kids. Homework Help - Kiddle Encyclopedia.