Undefined Terms and Subsets of a Line

1.) It has no dimension, usually represented by a capital letter and a dot

• point

• line

• plane

• space

2.) It is the subset of a line that begins at a certain point and extends in one direction.

• segment

• line segment

• ray

• line

3.) It is a flat surface with no thickness.

• segment

• plane

• ray

• point

4.) These are the points that lie on the same line.

• coplanar

• non-coplanar

• collinear

• non-collinear

5.) This can be formed by connecting two or more points

• point

• line

• plane

• segment

6.) It is a subset of a line that has two endpoints.

• point

• line

• plane

• line segment

7.) ________________are lines that will never meet.

• intersecting line

• parallel line

• perpendicular line

• straight line

8.) ________________ two or more lines that cross or meet at one point.

• intersecting line

• parallel line

• perpendicular line

• straight line

9.) ________________are set of points that lie on the same plane

• collinear points

• non-collinear points

• coplanar points

• non-coplanar points

10.) Which of the following does not determine a plane.

• three non-collinear points

• two intersecting lines;

• two parallel lines

• a line and a point on the line.