Question

1. which of the following is not one the three categories of euclid’s geometric principles?

definition
postulate
axiom
conjecture

Explanation:

Euclid's geometric principles are categorized into Definitions, Postulates (also called axioms for geometry), and Axioms (common notions). A conjecture is a statement that is proposed to be true but not yet proven, and it is not one of the three main categories of Euclid’s geometric principles.

Answer:

D. Conjecture