1. Chapter 3 Section 3.1
Lines and Angles

2. Warm-Up Name a line that contains C. ACB
Name a line that contains C. AC
Name a ray with endpoints B that contains A. BA
Name an acute angle with vertex B that contains C. <EBC
Name a segment with endpoint B that contains C. BC D C

3. Relationships between lines
Parallel
Coplanar lines that never intersect
Planes can also be parallel
Skew
Non-coplanar lines that never intersect
Perpendicular
Lines that intersect to form a 90° angle

4. Perpendicular Parallel Skew 4. Parallel 5. Perpendicular
Think of Each Segment in the Diagram As Part of a Line. Fill in the Blank With Parallel, Skew, or Perpendicular.
Perpendicular
Parallel
Skew
4. Parallel
5. Perpendicular

5. Think of Each Segment in the Diagram As Part of a Line
Think of Each Segment in the Diagram As Part of a Line. Fill in the Blank With Parallel, Skew, or Perpendicular.
6. Name a line parallel to
7. Name a line perpendicular to
10. Name a line perpendicular to
8. Name a line skew to
9. Name a plane parallel to GHJ
LMN

6. Corresponding Angles:1 and 7, 2 and 8, 4 and 5, 2 and 8 3 4 5 6 7 8
Corresponding Angles:1 and 7, 2 and 8, 4 and 5, 2 and 8
Alternate Interior: 7 and 6, 5 and 8
Alternate Exterior: 4 and 2, 3 and 1
Consecutive Interior: 7 and 5, 6 and 8

7. Complete the Statement With Corresponding, Alternate Interior, Alternate Exterior, or Consecutive Interior
6 and 10 are __________ angles
7 and 9 are __________ angles
8 and 9 are __________ angles
12 and 8 are __________ angles
5 and 11 are __________ angles
8 and 10 are __________ angles
corresponding
alternate interior
consecutive interior
corresponding
alternate exterior
alternate interior

8. Use the diagram of the Ferris Wheel to determine if the statement is true or false