Trisecting the Angle/Quadratrix of Hippias
Theorem
Let $\alpha$ be an angle which is to be trisected.
This can be achieved by means of a quadratrix of Hippias.
Construction
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Proof
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Also see
Historical Note
Use of the quadratrix of Hippias to trisect an angle was a invented by Hippias of Elis.
Sources
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $3$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $3$
