Relate the circumference of a circle with the perimeter of a polygonal figure. 0606.4.11

Links verified on 1/03/2010

1. Circle, Sphere and Cylinder Calculator - input a number, state if the number is diameter, radius, or circumference and the other numbers are calculated
2. Finding Area and Perimeter of Polygons - a 26 slide PowerPoint show
3. Lesson on Circumference of a Circle - examples and five practice exercises
4. Measuring Around - find circumference - five multiple choice questions
5. Pi - explanation from Wikipedia including an excellent animation at the top of the page