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- 1. LINE SEGMENTS, RAYS, AND ANGLES<br />Topic 9<br />Lesson 9-2<br />
- 2. LINE SEGMENTpart of a line with two endpoints<br /> A<br />B<br />
- 3. Name a line segment?<br /> E<br /> F<br />G<br /> H<br /> J <br />
- 4. Were you correct?<br />EF<br /> G J<br />H<br />Answers could be: EG, GE, GF, FG, GJ, JG, GH, HG, EJ, JE, HF, FH<br />
- 5. RAYa part of a line that has one endpoint and continues on forever in one direction<br />C D<br />
- 6. ANGLEa figure formed by two rays that have the same endpoint<br />
- 7. There are 4 types of angles.<br /> obtuse straight<br /> acute right <br />
- 8. RIGHT ANGLEis a square corner and equals 90 degrees<br />
- 9. STRAIGHT ANGLEforms a straight line and is equal to 180 degrees<br />
- 10. ACUTE ANGLEis less than a right angle or less than 90 degrees<br />
- 11. OBTUSE ANGLEis greater than a right angle or greater than 90 degrees<br />
- 12. VERTEXthe common endpoint of the two rays that form the angle<br />When naming an angle, name the points in the correct order with the vertex of an angle always in the middle.<br /> Example: PQT <br />PQ S<br /> U<br /> R T <br />
- 13. Name an acute angle.<br />EF<br /> G<br /> H J<br />
- 14. Did you get . . .<br />EGHorFGJ<br />
- 15. Name an obtuse angle.<br />E F<br /> G<br /> J<br /> H <br />
- 16. Did you say . . .<br />EGF or HGJ<br />
- 17. To name a straight angle you would say … <br /> C D E<br /> C D E<br />
- 18. Now you understand line segments, rays, and angles!<br />Time to tackle your homework. <br />

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