Question

parallel lines are coplanar lines that never intersect. a. undefined terms b. defined terms c. postulates d. theorems

Explanation:

In geometry, parallel lines have a clear - cut definition as coplanar lines that never intersect. Defined terms are those that are explained using other known terms. This is a definition, not an undefined term (like point, line, plane which are basic and not defined in terms of other concepts), not a postulate (an accepted statement without proof), and not a theorem (a statement that can be proven).

Answer:

B. Defined Terms