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Year 2 warm up copy the pictures

Year 2 warm up copy the pictures. C. Name this angle 3 ways If EB bisects <AEC and EC bisects <AED and m< AEB = 25 o then. T. A. A. 2a. Find the m < BEC 2b. Find the m < CED 2c. Find the m < BED. 25 °. 25. B. 50 °. 25. E. C. 75 °. 50. D. 1.3 Angle Relationships.

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Year 2 warm up copy the pictures

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  1. Year 2 warm up copy the pictures C • Name this angle 3 ways • If EB bisects <AEC and EC bisects <AED and m< AEB = 25o then T A A 2a. Find the m < BEC 2b. Find the m < CED 2c. Find the m < BED 25° 25 B 50° 25 E C 75° 50 D

  2. 1.3 Angle Relationships • A is an angle that measures 90°. • An measures less than 90°. • An measures more than 90° but less than 180°. right angle acute angle 35° obtuse angle 150°

  3. 1.3 continued • are angles formed by two intersecting lines. They share a common vertex but not a common side. Vertical angles are congruent. Vertical angles 3 1 2 4

  4. 1.3 continued • Two angles are a if they share a vertex and a common side, and their non-common sides form a line. linear pair 2 1 These are linear pairs 6 3 5 4

  5. 1.3 continued complementary angles • A pair of has a sum of 90°. • A pair of has a sum of 180°. B 20° 70° 2 1 A supplementary angles C 30° 150° 4 3 D

  6. 1.3 continued Parallel lines • are lines in the same plane that never meet. 3 3 4 4 Parallel lines have the same slope

  7. 1.3 continued Perpendicular lines • are lines that cross and form a 90° angle. Perpendicular lines have opposite and reciprocal slopes. You can also write: l

  8. 1.3 Summary • Write down in complete sentences and in your own words 3 things that you learned today. • Class work: worksheet 1.3 • Homework: p. 51 1-8, 11-20, 26

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