Henry Ernest Dudeney/Modern Puzzles/120 - The Ribbon Pentagon/Solution
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Modern Puzzles by Henry Ernest Dudeney: $120$
- The Ribbon Pentagon
- I want to form a regular pentagon, but the only thing at hand happens to be a rectangular strip of paper.
- How am I to do it without pencil, compasses, scissors, or anything else whatever but my fingers?
Solution
This is demonstrated in Trefoil Knot in Paper forms Pentagon:
Also see
Sources
- 1926: Henry Ernest Dudeney: Modern Puzzles ... (previous) ... (next): Solutions: $120$. -- The Ribbon Pentagon