Henry Ernest Dudeney/Modern Puzzles/123 - Making an Octagon

Modern Puzzles by Henry Ernest Dudeney: $123$

Making an Octagon

Can you cut the regular octagon from a square piece of paper without using compasses or ruler,

or anything but scissors?

You can fold the paper to make creases.

Sources

• 1926: Henry Ernest Dudeney: Modern Puzzles ... (previous) ... (next): Geometrical Problems: Paper-Folding Puzzles: $123$. -- Making an Octagon
• 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Geometrical Problems: Paper Folding Puzzles: $363$. Folding an Octagon