5.A ____________ is a collection of points along a straight path that extends endlessly in both directions.

A. line segment
B. line
C. ray
D. plane

6.Statements proven from definitions, postulates, or using operations from facts that were already known are called _______________. *

A. postulates
B. plane
C. undefined terms
D. theorems

7. Two lines that lie in the same plane and do not intersect are called ______________. *

A. parallel lines
B. line segment
C. perpendicular lines
D. angles

8. A ___________ extends infinitely in two dimensions. It has no thickness and is named by three points that do not lie on the same line.

A. point
B. plane
C. line
D.angles

9. A _______________ is a part of a line having two endpoints.

A. point
B. line
C. line segment
D. ray

10. Statements that are assumed to be true without proof are called __________


A. theorems
B. postulates
C. undefined terms
D. defined terms​