Question

Whose axiom is an alternative to Euclid s 5th postulate

Answer 1

this is the answer of the question

Answer 2

In geometry, the parallelpostulate, also called Euclid's fifth postulate because it is thefifth postulate in Euclid'sElements, is a distinctive axiomin Euclidean geometry. It states that, in two-dimensional geometry: ... A geometry where the parallel postulate does not hold is known as a non-Euclidean geometry.