Question

find out the other versions of parallel line postulate​

Answer 1

Answer:

Probably the best known equivalent of Euclid's parallel postulate, contingent on his other postulates, is Playfair's axiom, named after the Scottish mathematician John Playfair, which states: In a plane, given a line and a point not on it, at most one line parallel to the given line can be drawn through the point.

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