Respuesta :
There are not "undefined terms" but they may not have been covered in your course at this point, so what can you do ?
Parallel lines will never intersect at a point, and thus lie in the same plane perpendicular lines intersect at exactly one point and form four right angles about that point.
Answer: Plane
Step-by-step explanation:
Undefined terms : The terms that is difficult be defined .
There are three undefined terms in geometry .
i) A point helps to determine the exact position of a figure thus it has no dimension.
ii) A line is a one-dimensional geometric figure that extends upto infinity.
iii) A plane is a flat two-dimensional surface extending in all directions.
A plane can be determined by more than two lines or line and point not on that line.
Thus , the undefined term that can contain parallel lines = Plane