09 21-11 wk 4-3 triangle basics
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09 21-11 wk 4-3 triangle basics

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09 21-11 wk 4-3 triangle basics Presentation Transcript

  • 1. 9/21/11Wednesday
    EQ: How do I identify and describe polygons?
    I can classify triangles based on sides and angles.
    9/17/2011
    1
    Bitsy Griffin 4-3 Objective 3
  • 2. Quick Review:
    Polygon prefixes
    9/17/2011
    2
    Bitsy Griffin 4-3 Objective 3
  • 3. Angles:
    Two rays or line segments come together and form an
    Angle!
    9/17/2011
    3
    Bitsy Griffin 4-3 Objective 3
  • 4. Angles:
    Right
    Exactly 90o
    9/17/2011
    4
    Bitsy Griffin 4-3 Objective 3
  • 5. Angles:
    Obtuse
    Greater than 90o
    9/17/2011
    5
    Bitsy Griffin 4-3 Objective 3
  • 6. Angles:
    Acute
    Less than 90o
    9/17/2011
    6
    Bitsy Griffin 4-3 Objective 3
  • 7. Angles:
    Straight
    Exactly 180o
    9/17/2011
    7
    Bitsy Griffin 4-3 Objective 3
  • 8. Scalene
    No sides the same
    No angles the same.
    9/17/2011
    8
    Bitsy Griffin 4-3 Objective 3
  • 9. Scalene
    9/17/2011
    9
    Bitsy Griffin 4-3 Objective 3
  • 10. Isosceles:
    2 sides the same
    2 angles the same.
    9/17/2011
    10
    Bitsy Griffin 4-3 Objective 3
  • 11. Isosceles:
    9/17/2011
    11
    Bitsy Griffin 4-3 Objective 3
  • 12. Equilateral:
    3 sides the same
    3 angles the same.
    9/17/2011
    12
    Bitsy Griffin 4-3 Objective 3
  • 13. Triangle angles
    A triangle’s angles always add up to 180o
    9/17/2011
    13
    Bitsy Griffin 4-3 Objective 3
  • 14. Equilateral:
    9/17/2011
    14
    Bitsy Griffin 4-3 Objective 3
  • 15. EQ: How do I identify and describe polygons?
    I can classify triangles based on sides and angles.
    9/17/2011
    15
    Bitsy Griffin 4-3 Objective 3
  • 16. Assessment
    Identify angle types
    Identify triangle types
    9/17/2011
    16
    Bitsy Griffin 4-3 Objective 3