Use complete sentences to describe why postulates are ?

Postulates are the most important building blocks of geometric proofs. Postulates are often the basic truth of a much larger theory or law. Postulates themselves cannot be proven, but since they are usually obviously correct this is not a problem.A postulate (also sometimes called an axiom) is a statement that is agreed by everyone to be correct.

     A good example of a postulate is given by Euclid as:

          "  Two points determine (make) a line "

38 dollars is your answer.