1. Bell work Describe some real world examples of parallel lines.
Find the letter that is the 276th entry in the following sequence..
G, L, G, L, L, G, L, L, L, G, L, L, L, L,G, L,L, ___.
3. What type of reasoning is used and why?

2. Homework review Testmoz.com/174031 1-2 Slides Again
Quiz retake after lesson

3. 1-3: Segments, Rays , Parallel Lines and Planes
Many geometric figures, such as squares and angles, use only the parts of lines called segments and rays.

4. 1. Yes; the segments have the same endpoints
1.Yes; the segments have the same endpoints and contain the same points between them.
2. No; they have different endpoints and continue in different directions

5. Two collinear rays with the same endpoint.
Opposite Rays
Two collinear rays with the same endpoint.
They always form a line

6. Name 4 different rays in the figure below.Q P L
Name 4 different rays in the figure below. LP QL PQ PL
Name two opposite rays.
PL and PQ

7. Coplanar lines that do not intersect.
Parallel Lines
Coplanar lines that do not intersect.

8. Name all the segments shown that are parallel to A. DC B. GJ C. AE
AD, EF, BC, HI DF
AB, GH, JI
Skew lines do not lie in the same plane. They are not parallel and they do not intersect
Ex: AB and HI

9. Planes that do not intersect
Parallel Planes
Planes that do not intersect
Parallel Planes
Intersecting Planes

10. Think about this!
Air traffic controllers keep eastbound and westbound airplanes from colliding by having them cruise at different altitudes. The airplanes thus pass each other in ____________.
Parallel planes

11. 1.Suppose two parallel planes A and B are each intersected by a third plane C. What do you think will be true of the intersection of planes A and C and the intersection of planes B and C? Give an example within this classroom.
2. List four pairs of parallel planes in this classroom.
3. The term skew is from a Middle English word meaning “to escape.” Explain why this might be an appropriate origin for the word that names skew lines.

12. Quiz Time Period 1 Only Find the next 3 terms in the sequence.
10,11,22,23,46,47, ___,___,___.
1/5,2/5,3/5,4/5,___,___,___.
What is the last digit of 2^57 power?
True or False: Parallel lines are
coplanar lines that do not intersect.
True or False: Opposite rays never
form a line. 4 5 6 7

13. Homework
testmoz.com/175008