1 / 32

ANGLES

ANGLES. ANGLES. R. We write: PR. P. RAY. part of a line. goes forever in one direction. has one endpoint. ray. a line. a point. angle. two rays with a common endpoint. side. vertex. side. opposite rays. interior. exterior. A. Angles are measured in DEGREES. 30 °.

anisa
Download Presentation

ANGLES

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ANGLES ANGLES

  2. R We write: PR P RAY part of a line goes forever in one direction has one endpoint ray a line a point

  3. angle two rays with a common endpoint side vertex side

  4. opposite rays

  5. interior exterior

  6. A Angles are measured in DEGREES 30° m A = 30

  7. 30° A B Angles are measured in DEGREES 45° m B = 45

  8. A 45° B C 30° Angles are measured in DEGREES 90° m C = 90

  9. D A B 90° C 45° 30° Angles are measured in DEGREES 135° m D = 135

  10. 30° A F 45° B 90° C D 135° Angles are measured in DEGREES 180° m F = 180

  11. 4 angle names 4

  12. A angle names A

  13. B C A D angle names BAD or DAB

  14. B C A D angle names BAC or CAB

  15. B C A D angle names CAD or DAC

  16. 5 1 2 m1 + m 2 = m 5 ANGLE ADDITION POSTULATE

  17. Q P  QOP  ROQ O R mROQ m ROP + m QOP = ANGLE ADDITION POSTULATE

  18. D acute angle m  D < 90°

  19. D right angle m  D = 90°

  20. D m  D > 90° but < 180° obtuse angle

  21. D straight angle 180° m  D = 180°

  22. 1 2 CONGRUENT ANGLES 40° If  1 and  2 have the same measure, then  1   2 40° If  1   2, then  1 and  2 have the same measure

  23. PS bisects RPT divides an angle into 2  angles Angle bisector R S RPS  SPT T P

  24. PR  QS Q P R S PERPENDICULAR LINES  lines  lines form rt. s perpendicular lines form right angles

  25. 2 1 3 4 VERTICAL ANGLES 1 and 3 are vertical angles 2 and 4 are vertical angles

  26. 2 1 3 4 VERTICAL ANGLES vertical angles are congruent vert. s  1  3 ; 2  4

  27. 5 2 1 3 4 ADJACENT ANGLES adj s 1 and 2  2 and 3  3 and 4  5 and 4 • 5 and 1

  28. LINEAR PAIR 1 2 1 and 2 are a linear pair the sum of the angle measures of a linear pair is 180

  29. 2 1 3 LINEAR TRIPLE 1,  2, and 3 are a linear triple the sum of the angle measures of a linear triple is 180

  30. 50  70  3 20 1 2 40  4 COMPLEMENTARY ANGLES comp s 3 and 4 are comp s 1 and 2 are comp s

  31. 70  160  3 110  20 1 2 4 SUPPLEMENTARY ANGLES supp s 3 and 4 are supp s 1 and 2 are supp s

  32. THE END

More Related