Category:Definitions/Perpendiculars
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This category contains definitions related to Perpendiculars.
Related results can be found in Category:Perpendiculars.
In the words of Euclid:
- When a straight line set up on a straight line makes the adjacent angles equal to one another, each of the equal angles is right, and the straight line standing on the other is called a perpendicular to that on which it stands.
(The Elements: Book $\text{I}$: Definition $10$)
In the above diagram, the line $CD$ has been constructed so as to be a perpendicular to the line $AB$.
Subcategories
This category has only the following subcategory.
D
Pages in category "Definitions/Perpendiculars"
The following 14 pages are in this category, out of 14 total.