1. 3-1 Lines and Angles Objective:
To identify relationships between figures in space
To identify angles formed by two lines and a transversal

2. New Vocabulary
1) Cut out ten vocab blocks.
2) Fill in the blocks for the following vocabulary based on examples/non-examples

3. Straight Angles
Examples
Non-Examples

4. Linear Pair
Examples
130°
50°
Non-Examples

5. Supplementary Angles
Straight Angle
Examples
Non-Examples

6. Complementary Angles
Straight Angle
Examples
Non-Examples

7. Vertical Angles
Examples
Non-Examples

8. Corresponding Angles
Examples
Non-Examples
>

9. Warm Up 1) Sketch the diagram below.
2) Name a pair of the following angles:
Linear Vertical
Supplementary Corresponding
1 & 2, 5 & 6,…
2 & 8, 2 & 7, 3 & 5, 6 & 4
1 & 3, 5 & 7, 2 & 4…

10. Alternate Interior Angles
Examples
Non-Examples

11. Alternate Exterior Angles
Examples
Non-Examples

12. Same-side Interior Angles
Examples
Non-Examples

13. Same-side Exterior Angles
Examples
p.143: 4-7, 21-23, (Draw first!), then spruce-up definitions
Non-Examples

14. Scew Lines
1, 2, 7, and 8 lie outside of l and m.

15. Terms Transversal Corresponding angles: Alternate interior angles:
A line intersecting two or more other lines in the plane
Corresponding angles:
Alternate interior angles:
Alternate exterior angles:
Parallel lines are coplanar lines that do not intersect. The symbol Means “is parallel to.” 1 2 l 3 4 5 6 k 7 8

16. p. 143: 1, 3-9, 11-13, 15-23