H. E. Dudeney, Amusements in Mathematics (1917) No. 184 · Puzzles · Geometrical puzzles
How to Draw an Oval
Can you draw a perfect oval on a sheet of paper with one sweep of the compasses? It is one of the easiest things in the world when you know how.
H. E. Dudeney, Amusements in Mathematics (1917) · No. 184
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