1. Slide
60 seconds
HW Questions
2. Slide
60 seconds
Concepts
Parallel lines: Two coplanar lines that never intersect. The symbol || means "is parallel to". Skew lines: Two noncoplanar lines. They are not parallel, and they do not intersect. Parallel planes: Two planes that do not intersect.
3. Slide
60 seconds
Example
Which segments are parallel to AB?
4. Slide
60 seconds
Example
Which segments are skew to CD?
5. Slide
60 seconds
Example
What are two pairs of parallel planes?
6. Slide
60 seconds
Example
What are two segments parallel to plane BCGF?
7. Slide
60 seconds
Concepts
Transversal: A line that intersects two or more coplanar lines.
8. Slide
60 seconds
Concepts
Alternate Interior Angles: Nonadjacent interior angles that lie on opposite sides of the transversal.
9. Slide
60 seconds
Concepts
Same-side Interior Angles: Interior angles that lie on the same side of the transversal.
10. Slide
60 seconds
Concepts
Corresponding Angles: Angles that lie on the same side of the transversal and in the same position.
11. Slide
60 seconds
Concepts
Alternate Exterior Angles: Nonadjacent exterior angles that lie on opposite sides of the transversal.
12. Poll
50 seconds
Which is a pair of alternate interior angles?
- ∠1 and ∠3
- ∠6 and ∠7
- ∠2 and ∠6
- ∠4 and ∠8
13. Poll
50 seconds
Which is a pair of corresponding angles?
- ∠1 and ∠3
- ∠6 and ∠7
- ∠2 and ∠6
- ∠4 and ∠8
14. Poll
50 seconds
Which is a pair of alternate exterior angles?
- ∠1 and ∠3
- ∠6 and ∠7
- ∠2 and ∠6
- ∠4 and ∠8
15. Slide
60 seconds
1-6 Classwork
Complete Page 144 #11-24 all
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