Question

Euclid stated that all right angles are equal to each other in the form of

• A. an axiom
• B. a definition
• C. a postulate
• D. a proof

Answer 1

The correct option is C a postulate

Axiom: - An axiom is a universal truth which you need not to prove and this is true for all domains.
Definition: - A definition is the basic information about an object or an entity.
Postulate: - Postulate is also a universal truth but this is specifically linked to geometry and this is true only for the geometry.
Proof: - Proof is a deduction of a result. We can use the axioms and postulates both in a proof to prove a given result.
As, angles are related to geometry and this is one of the universal truth, so this one of the postulates given by Euclid.