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bell ringer 3-29-17

bell ringer 3-29-17. 1. What do you know about triangles ? How many degrees? Types? 2 . What do you know about parallel lines? Their slopes ? 2. What do you know about perpendicular lines? Their slopes?. angles & Lines. Wednesday, March 29, 2017. angles.

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bell ringer 3-29-17

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  1. bell ringer 3-29-17 • 1. What do you know about triangles? How many degrees? Types? • 2. What do you know about parallel lines? Their slopes? • 2. What do you know about perpendicular lines? Their slopes?

  2. angles & Lines Wednesday, March 29, 2017

  3. angles • What makes an angle acute? right? obtuse? straight? reflex?

  4. angles • What is the sum of the degrees of a linear angle pair? Are these angles complementary or supplementary?

  5. Examples

  6. angles • What is it called when you cut an angle in half? • Vertical Angle Theorem – What is true about vertical angles?

  7. Examples PT bisects T.

  8. angles • Angle Sum Theorem – How many degrees? • Exterior Angle of a Triangle – How does it relate to the two remote interior angles?

  9. Examples

  10. lines • How do you know if points are on a perpendicular bisector of a line segment? • What is true about a midsegment?

  11. Examples

  12. parallel lines cut by a transversal

  13. Linear Pair postulate p. 111 1 2

  14. Example

  15. vertical angles theorem p. 112 1 3

  16. Example

  17. alternate interior angles theorem p. 143 3 5

  18. Example

  19. alternate exterior angles theorem p. 143 1 7

  20. Example

  21. consecutive interior angles theorem p. 143 3 6

  22. Example

  23. consecutive exterior angles theorem 1 8

  24. Example

  25. corresponding angles postulate p. 143 1 5

  26. Example

  27. parallel lines cut by a transversal Converses are true…that’s how you can prove lines are parallel. (p. 150)

  28. Examples

  29. exit ticket What angle pairs are formed when parallel lines are cut by a transversal? Homework Parallel Lines cut by a Transversal STUDY Notes & Examples (will be tested even if not practiced on homework)

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