Example Sentences

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Thus much of the Perpendicularity of plaine right lines: Parallelissmus, or their parallell equality doth follow.

From The Way To Geometry by Bedwell, William

Perpendicularity is first generally defined thus: Lines are right betweene themselves, that is, perpendicular one unto another, when the one of them lighting upon the other, standeth upright and inclineth or leaneth neither way.

From The Way To Geometry by Bedwell, William

Perpendicularity was in the former attributed to lines considered in a surface.

From The Way To Geometry by Bedwell, William