What is the Circumference? The distance around a circle.

All lines in a circle: Circumference - The distance around a circle. Diameter - The distance across a circle through the center. Radius - The distance from the center of a circle to any point on the circle.

How to find the area of a circle:
Just follow this equation:

What is the Circumference?

The distance around a circle.

All lines in a circle:

Circumference - The distance around a circle.

Diameter - The distance across a circle through the center.

Radius - The distance from the center of a circle to any point on the circle.

How to find the area of a circle:

Just follow this equation:

R stands for radius

Citations: http://www.mathgoodies.com/lessons/vol2/circumference.html