1. Problem of the day
1) How many points are needed to form a line?
2) Can two straight lines intersect at more than
one point?

2. Line and Angle Relationships
• You will be able to identify different types of
lines.

3. Vocabulary
• Parallel lines are two lines that lie in the same
plane and do not intersect.
•Intersecting lines are lines that cross paths in
one place.

4. • Skew lines are lines that do not lie in the same
place. They are NOT parallel and do NOT
intersect.

5. Types of Lines

6. • Draw two intersecting lines. Then draw a
segment that is parallel to one of the intersecting
lines.

8. • Vertical angles – opposite angles formed by two
intersecting lines

9. • Transversal – the line that intersects parallel
lines