Proposition: 4.12: Circumscribing Regular Pentagon about Circle
To circumscribe an equilateral and equiangular pentagon about a given circle.
* Let $ABCDE$ be the given circle.
* So it is required to circumscribe an equilateral and equiangular pentagon about circle $ABCDE$.
It is possible to circumscribe a regular pentagon about a given circle.
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Adapted from (subject to copyright, with kind permission)
- Fitzpatrick, Richard: Euclid's "Elements of Geometry"
Adapted from CC BY-SA 3.0 Sources:
- Prime.mover and others: "Pr∞fWiki", https://proofwiki.org/wiki/Main_Page, 2016