Henry Ernest Dudeney/Modern Puzzles/125 - Making a Pentagon
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Modern Puzzles by Henry Ernest Dudeney: $125$
- Making a Pentagon
- How do you construct a regular pentagon on a given unit straight line?
Dudeney's original article was unnecessarily prolix.
Click here for solution
Sources
- 1926: Henry Ernest Dudeney: Modern Puzzles ... (previous) ... (next): Geometrical Problems: Various Geometrical Puzzles: $125$. -- Making a Pentagon
- 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Geometrical Problems: Triangle, Square & Other Polygon Puzzles: $257$. Making a Pentagon