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.It is a consequence of Euclids's parallel postulate.
need a simple explanation of Euclids theory.
No.
Because it will eventually complete a Circle, like the dachshund that met its end going round a lamp-post.
eetrgrv
euclids elements
geometry
geometry
Euclidean geometry is the study of points, lines, planes, and other geometric figures. The most prolonged argument over time has been that of the parallel postulate which states: there can only be one line that contains a given point and is parallel to another line.
compositions
euclids elements
Yes by one definition of interior angles - it does !