Definition:Geometric Figure/Rectilineal Figure
< Definition:Geometric Figure(Redirected from Definition:Rectilineal Figure)
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Definition
In the words of Euclid:
- Rectilineal figures are those which are contained by straight lines, trilateral figures being those contained by three, quadrilateral those contained by four, and multi-lateral those contained by more than four straight lines.
(The Elements: Book $\text{I}$: Definition $19$)