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Instead of using a flat object such as a yogurt top, what happens if you construct a minimum length trefoil knot from a flexible tube and then find the ratio of its opened length to the tube's diameter? What mathematical formula provides this answer?




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The activity can be viewed at: Circular Reasoning: Finding Pi

Interesting question. Are you working on a K-12 student science project?

The activity you've commented on is a short STEM activity, not an advanced math or knot theory project.

Amy
Science Buddies