1. Geometry Week #1A Section 3

2. Warbler on a cherry tree branch

3. Homework Wk #1A Section 2 Answers 1. Perpendicular 2. Parallel 3. Skew 4. Parallel 5. Perpendicular 6. MN or KG 7. KL or JM or MN 8. MN or KL or MJ 9. Plane LMN 10. HN or GH or JM or KJ Extra Credit: Only one. See drawing.

4. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean.. CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. WARMUP QUESTIONS Give the coordinates of the graphed points. 1. Point A - ________ 2. Point B - ________ 3. Point C - ________ 4. Point D - ________

5. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean.. CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. WARMUP QUESTIONS Give the coordinates of the graphed points. 1. Point A – ( - 2, 1 ) 2. Point B - ________ 3. Point C - ________ 4. Point D - ________

6. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean.. CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. WARMUP QUESTIONS Give the coordinates of the graphed points. 1. Point A – ( - 2, 1 ) 2. Point B – ( 4, 0 ) 3. Point C - ________ 4. Point D - ________

7. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean.. CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. WARMUP QUESTIONS Give the coordinates of the graphed points. 1. Point A – ( - 2, 1 ) 2. Point B – ( 4, 0 ) 3. Point C – ( 3, - 2 ) 4. Point D - ________

8. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean.. CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. WARMUP QUESTIONS Give the coordinates of the graphed points. 1. Point A – ( - 2, 1 ) 2. Point B – ( 4, 0 ) 3. Point C – ( 3, - 2 ) 4. Point D – ( - 1, - 3 )

9. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean.. CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. WARMUP QUESTIONS State whether each of these is best described as a point, a line, or a plane. 5. the corner of the room - __________ 6 the top of a desk - __________ 7. the knot in a piece of thread - _________ 8. the crease in a piece of paper - __________

10. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean.. CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. WARMUP QUESTIONS State whether each of these is best described as a point, a line, or a plane. 5. the corner of the room – point or line 6 the top of a desk - __________ 7. the knot in a piece of thread - _________ 8. the crease in a piece of paper - __________

11. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean.. CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. WARMUP QUESTIONS State whether each of these is best described as a point, a line, or a plane. 5. the corner of the room – point or line 6 the top of a desk - plane 7. the knot in a piece of thread - _________ 8. the crease in a piece of paper - __________

12. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean.. CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. WARMUP QUESTIONS State whether each of these is best described as a point, a line, or a plane. 5. the corner of the room – point or line 6 the top of a desk - plane 7. the knot in a piece of thread - point 8. the crease in a piece of paper - __________

13. Week #1A – Section 3 GOAL: To learn what collinear and coplanar mean.. CA STANDARD 1.0: Demonstrate understanding by identifying and giving examples of undefined terms. WARMUP QUESTIONS State whether each of these is best described as a point, a line, or a plane. 5. the corner of the room – point or line 6 the top of a desk - plane 7. the knot in a piece of thread - point 8. the crease in a piece of paper - line

14. Week #1A Section #3 Notes VOCABULARY Co- A prefix that means together, like co-captains Collinear Coplanar

15. Week #1A Section #3 Notes VOCABULARY Co- A prefix that means together, like co-captains Collinear on the same line Coplanar

16. Week #1A Section #3 Notes VOCABULARY Co- A prefix that means together, like co-captains Collinear on the same line Coplanar on the same plane Also! Noncollinear and noncoplanar

17. Collinear Birds

18. Week #1A Section #3 Notes VOCABULARY

19. Week #1A Section #3 Notes VOCABULARY