On Thu, 20 May 2004 12:15:08 GMT, "BigWallop"
wrote:




The radius squared multiplied by pi gives the area of a circle. Two times Pi
multiplied by the diameter give the circumference.

2 x pi x radius = circumference

Pi multiplied by 4 then multiplied
by the radius squared gives you the surface area of a sphere.

http://mathforum.org/paths/measurement/aos.html



..andy

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