‘Lines are parallel if they do not intersect’ is stated in the form of
(A) an axiom
(B) a definition
(C) a postulate
(D) a proof
Parallel lines: According to the definition of parallel lines “lines are parallel if they do not intersect”.
They are not intersecting.
Definition: a statement that gives the exact meaning of the given word.
Hence, ‘lines are parallel if they do not intersect’ is stated in the form of a definition.