1. Millau Bridge Sir Norman Foster Point, Lines, Planes, Angles Fallingwaters Frank Lloyd Wright Millenium Park Frank Lloyd Wright 1.2 CE Points, Lines, and Planes

2. Classify each statement as true or false. T, O, and R are collinear. X, O, and Y are collinear. R, O, S, and W are coplanar. R, S, T, and X are coplanar. R, X, O, and Y are coplanar. True False, only O

3. 1.2 CE Points, Lines, and Planes Classify each statement as true or false. T, O, and R are collinear. X, O, and Y are collinear. R, O, S, and W are coplanar. R, S, T, and X are coplanar. R, X, O, and Y are coplanar. False, only O

4. 1.2 CE Points, Lines, and Planes Classify each statement as true or false. T, O, and R are collinear. X, O, and Y are collinear. R, O, S, and W are coplanar. R, S, T, and X are coplanar. R, X, O, and Y are coplanar. False, only O False, curved line

5. 1.2 CE Points, Lines, and Planes Classify each statement as true or false. T, O, and R are collinear. X, O, and Y are collinear. R, O, S, and W are coplanar. R, S, T, and X are coplanar. R, X, O, and Y are coplanar. False, only O False, curved line True

6. 1.2 CE Points, Lines, and Planes Classify each statement as true or false. T, O, and R are collinear. X, O, and Y are collinear. R, O, S, and W are coplanar. R, S, T, and X are coplanar. R, X, O, and Y are coplanar. False, only O False, curved line True True. They are all in the yellow plane.

7. 1.2 CE Points, Lines, and Planes Classify each statement as true or false. T, O, and R are collinear. X, O, and Y are collinear. R, O, S, and W are coplanar. R, S, T, and X are coplanar. R, X, O, and Y are coplanar. False, only O False, curved line True True. They are all in the yellow plane. False, R, S, and T are in the yellow plane but X is not.

8. 1.2 CE Points, Lines, and Planes Classify each statement as true or false. R, O, S, and W are coplanar. R, S, T, and X are coplanar. R, X, O, and Y are coplanar. True. They are all in the yellow plane. False, R, S, and T are in the yellow plane but X is not. True. They are all in the vertical green plane.

9. 1.2 CE Points, Lines, and Planes Does a plane have edges? No. What we draw is only a model. The real plane extends outward forever.

10. 1.2 CE Points, Lines, and Planes Can a given point be in two lines? Ten lines? Yes. On the right O is on three lines. Yes

11. 1.2 CE Points, Lines, and Planes Can a given line be in two planes? Ten planes? Yes Yes. Think of pages in a book.

12. Name the fourth point that is in the same plane as the given points. 11. A, B, C 16. B, G, C 12. E, F, H 13. D, C, H 14. A, D, E 15. B, E, F D

13. Name the fourth point that is in the same plane as the given points. 11. A, B, C 16. B, G, C 12. E, F, H 13. D, C, H 14. A, D, E 15. B, E, F D G

14. Name the fourth point that is in the same plane as the given points. 11. A, B, C 16. B, G, C 12. E, F, H 13. D, C, H 14. A, D, E 15. B, E, F D G G

15. Name the fourth point that is in the same plane as the given points. 11. A, B, C 16. B, G, C 12. E, F, H 13. D, C, H 14. A, D, E 15. B, E, F D G G H

16. Name the fourth point that is in the same plane as the given points. 11. A, B, C 16. B, G, C 12. E, F, H 13. D, C, H 14. A, D, E 15. B, E, F D G G H A

17. Name the fourth point that is in the same plane as the given points. 11. A, B, C 16. B, G, C 12. E, F, H 13. D, C, H 14. A, D, E 15. B, E, F D G G H A F

18. Name the fourth point that is in the same plane as the given points. A, D, G E, H, C D, F, H F Unusual examples.

19. Name the fourth point that is in the same plane as the given points. A, D, G E, H, C D, F, H F Unusual examples. B

20. Name the fourth point that is in the same plane as the given points. A, D, G E, H, C D, F, H F Unusual examples. B B

21. Q17. Are there any points on besides C and G? Q18. Are there more than 4 points in plane ABCD? Yes. There are an infinite number of pts. They are just not labeled.

22. Q19. Name the intersection of planes ABFE and BCGF.

23. Q20. Name 2 planes that do not intersect. ABCD & EFGH ADHE & BCGF ADFE & DCGH

24. C’est fini. Good day and good luck.