Friday, May 4, 2012

Common terms in Circles

Diameter: Is the distance across a circle through it's circle.
Radius (or 'radii' for plural): Is the distance from the centre of a circle to its outer edge (sort of like a spoke in a wheel).

Circumference: Is the perimeter of a circle, or the distance around the circle.

Area: Is the inside of the perimeter (circumference), or what's inside the circle.

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