And when the lines containing the angle are straight, the angle is called rectilineal.
Father of geometry
Found in 1 providers: grok
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"Rectilineal figures are those which are contained by straight lines..."
Shocking"The only purpose of the 'Elements' is to demonstrate mathematically certain fundamental propositions."
Shocking"If a straight line touch a circle, and from the point of contact there be drawn across in the circle a straight line cutting the circle, the angles which it makes with the tangent will be equal to the…"
Strange & Unusual"The postulates are not self-evident, but they are necessary for the development of geometry."
Strange & Unusual"If equals be added to equals, the wholes are equal."
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