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# 9 1 Points, Lines, And Planes

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This slide show was prepared to help my fourth grade class learn about points, lines, and planes as part of our geometry unit in math and to help them with their homework.

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### 9 1 Points, Lines, And Planes

1. 1. POINTS, LINES, & PLANES<br />TOPIC 9<br />Lesson 9-1<br />
2. 2. POINTan exact location in space<br />A<br />
3. 3. LINEa straight path of points that goes on and on in two directions<br />
4. 4. PLANEan endless flat surface<br />
5. 5. PARALLEL LINES never intersect<br />
6. 6. PERPENDICULAR LINESform square corners with right angles.<br />
7. 7. INTERSECTING LINESpass through the same point<br />
8. 8. What kind of lines are these?<br />Parallel<br />Intersecting <br />Perpendicular<br />Go to the next slide to check your answer.<br />
9. 9. B. INTERSECTING Were you correct?<br />
10. 10. What kind of lines are these?<br />Perpendicular<br />Parallel<br />Intersecting<br />Go to the next slide to check your answer.<br />
11. 11. B. PARALLELWere you correct? <br />
12. 12. On the line, what is K called?<br />Point<br />Intersecting line<br />Parallel line K<br />
13. 13. A. POINTWere you correct?<br />
14. 14. What kind of lines are these?<br />Intersecting<br /> Parallel<br /> Perpendicular<br />Go to the next slide to check your answer.<br />
15. 15. A. INTERSECTINGANDC. PERPENDICULARWere you stumped or did you figure it out? <br />
16. 16. Which 2 lines are parallel?<br />A C E<br /> F H G<br /> AE and FG OR AE and CH<br />
17. 17. Did you guess AE and FG?You were correct!You’rea star!<br />
18. 18. Which 2 lines are perpendicular?<br />MP<br />S<br />O<br />RN<br />MR and PN OR MR and OS<br />
19. 19. Did you guess MR and OS?You were correct!<br />