1. Points, Lines and Planes

2.  Describe the undefined terms: point, line and plane.

3. Term DescriptionHow to Name itDiagram A ____________ indicates a location and has no size. You can represent a point by a dot and name it by a capital letter, such as A. A __________ is represented by a straight path that extends in two opposite directions without end and has no thickness. A line contains infinitely many points. You can name a line by any two points on the line, such as (read “line AB), or, or by a single lowercase letter such as line l. A ________ is represented by a flat surface that extends without end and has no thickness. A plane contains infinitely many lines. You can name a plane by a capital letter, such as plane P, or by at least 3 points on the plane that do not all lie on the same line, such as plane ABC.

4.  ___________ points are points that lie on the same line.  Points and lines that lie in the same plane are _____________.  All of the points of a line are ____________.

5.  Are points E, F, and C collinear?  If so, name the line on which they lie.  Are points E, F and D collinear?  If so, name the line on which they lie.

6.  Name the planes.

7.  A _______________ or ________ is an accepted statement of fact.  Postulate 1-1: Through any two points there is exactly one line.

8.  If two lines intersect, then they intersect in exactly one point.

9.  If two planes intersect, then they intersect in exactly one line.

10.  What is the intersection of the planes.

11.  Through any three noncollinear points there is exactly one plane.

12.  Name the plane that contains the following points:

13.  p. 13  To turn in: 2, 10, 14, 18, 24, 32, 36, 42, 50, 52, 56, 60, 62, 64, 66, 80  BONUS: 82