"Fit polygons together to make loops. Discover the patterns."Octagons can be fitted together to make loops. Try it for yourself with this applet!How many octagons do you need to make a loop? Are there certain numbers of octagons that will not make a loop? What is the inside perimeter of the shape? What is the outside perimeter? The perimeters form and interesting pattern. Can you find a formula that links the perimeter...

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