1. Chapter 1 Section 1-3 Segment, Rays, Parallel Lines, & Planes

2. Warm-Up:

4. How do you name a ray?
The first letter naming a ray is always its endpoint. The second letter is any other point on the ray.

5. Remember!! Opposite Rays are two distinct collinear rays with only their end points in common.

6. The notation for naming lines, line segments, and rays match the figure.
Line AB
Segment AB
Ray AB

8. Are the lines parallel??? Line a: (1,2) & (3,4) Line b: (-3,1) & (1,3)
Plot the following points
And determine if they produce parallel Lines.
Line a: (1,2) & (3,4)
Line b: (-3,1) & (1,3)
Line a: (0,0) & (2,2)
Line b: (0,-3) & (2,-1)

10. a.. b.

11. Name all segments that are parallel to
Name all segments that are skew to

12. How are parallel and skew lines alike
How are parallel and skew lines alike? They both never intersect How are they different?? Parallel lines are in the same plane, skew lines are not.

13. Switch to Flipchart for next exercises – these exercises are on page 19 in your textbook – 5 – 7, 11 – 13, 14 – 16

14. Do you get it???

15. Homework Practice 1-2 + 1-3 Plus page 23 Lesson 1-2 review #71 – 78
Prepare for quiz on sections 1-2 through 1-3!!!