Question

Define Euclid fifth Axiom

Answer 1

Fifth Axiom: The whole is greater than the part.

Answer 2

https://goo.gl/search/Define+euclid+fifth+axiom
Parallel postulate - Wikipedia In geometry, the parallel postulate, also called Euclid's fifth postulate because it is the fifth postulate in Euclid's Elements, is a distinctive axiom in Euclidean geometry. ... Euclid gave the definition of parallel lines in Book I, Definition 23 just before the five postulates.