Question

Line A. C. D. B. Defined Postulates Theorems Undefined Terms

Answer 1

Answer: Undefined

Step-by-step explanation:

In geometry there are three  undefined terms that we use to define other terms:

• Point → In geometry a point has a location but no dimension.
• Plane →  A plane extends is a 2-dimensional surface that extends infinitely on both sides.
• Line → A line is a one-dimensional undefined figure that extends infinitely in both the directions. It has length but has no width.

Hence, the correct option is "Undefined".