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SECTION 2.2 Angle Bisectors

SECTION 2.2 Angle Bisectors. VOCBAULARY Angle Bisector. LEARNING TARGETS: I will be able to identify angle bisectors. I will be able to find angle measures using the angle bisector. Activity 2.2. QUESTION : How can you bisect an angle? MATERIALS: Protractor Straightedge

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SECTION 2.2 Angle Bisectors

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  1. SECTION 2.2Angle Bisectors VOCBAULARY Angle Bisector LEARNING TARGETS: I will be able to identify angle bisectors. I will be able to find angle measures using the angle bisector.

  2. Activity 2.2 QUESTION: • How can you bisect an angle? MATERIALS: • Protractor • Straightedge • Page 60 in Textbook

  3. Activity 2.2

  4. Activity 2.2

  5. Activity 2.2

  6. Activity 2.2

  7. Angle Bisector • ANGLE BISECTOR: • A ray that divides an angle into two angles that are congruent. BD is an angle bisector • DB is an angle bisector.

  8. Example (Notes) NQ bisects ∠MNP. m∠MNP = 74°. Find m∠MNQ and m∠PNQ. m∠MNQ = m∠PNQ =

  9. Example (Textbook) m∠ABD = m∠DBC =

  10. Example (Notes) AB bisects ∠FAH.m∠BAF=38° m∠HAB = m∠FAH= Classify ∠FAH:

  11. Example (Notes) GJ bisects ∠FGH. Find the value of x. x =

  12. Example (Notes) • AD bisects ∠CAT. Find the angle measure. m∠ CAD = __________ m∠ DAT = _________

  13. Example (Notes) • OH bisects ∠DOG. Find x.

  14. Example (Notes) • OH bisects ∠DOG. Find x.

  15. Example (Notes) • Use the figure at the right to complete the statements.

  16. Example (Textbook)

  17. Cooperative Learning • Angle Bisector Worksheet

  18. HOMEWORK • Section 2.2 Assignment • Page 64 #8-26, 28-30, and 33 • Due Wednesday, 10/19

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