Definition:Euclid's Definitions - Book XI/7 - Similarly Inclined
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Definition
In the words of Euclid:
- A plane is said to be similarly inclined to a plane as another is to another when the said angles of the inclinations are equal to one another.
(The Elements: Book $\text{XI}$: Definition $7$)
Sources
- 1926: Sir Thomas L. Heath: Euclid: The Thirteen Books of The Elements: Volume 3 (2nd ed.) ... (previous) ... (next): Book $\text{XI}$. Definitions