The extremities of a surface are lines.
Father of geometry
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Cross Reference
2 sources
"That all right angles are equal to one another."
Shocking"A line is breadthless length."
Strange & Unusual"If two triangles have two sides equal to two sides respectively, and have the angles contained by the equal straight lines equal, they will also have the base equal to the base, the triangle will be e…"
Strange & Unusual"The laws of nature are but the mathematical thoughts of God."
Strange & Unusual"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 …"
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