1. POINTS, LINES, & RAYS

2. POINT
A point is a location in space that has no length, width, or height. C
READ: point C
WRITE: C

3. LINE
A line is a straight, continuous, and unending path made up of a collection of points. C D
READ: line CD
WRITE: CD

4. LINE SEGMENT A line segment is part of a line and has two endpoints.C D
READ: line segment CD
WRITE: CD

5. RAY
A ray is part of a line made up of one endpoint and all the points on one side of it. C D
READ: ray CD
WRITE: CD

6. PLANE
A plane is a flat surface made up of a continuous and unending collection of points. ·J ·L ·K
READ: plane JKL
WRITE: plane JKL

7. INTERSECTING LINES Intersecting lines have one point in common.B D
READ: Line AB intersects line CD at point E.

8. PERPENDICULAR LINES Perpendicular lines intersect at right angles.W X T
READ: Line RT is perpendicular to line WX.
WRITE: RT  WX.

9. PARALLEL LINES
Parallel lines lie in the same plane but never intersect. P Q M N
READ: Line MN is parallel to line PQ.
WRITE: MNPQ.