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Angles and Triangles

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  • Triangles can be classified by the length of their ________ and the measure of their ________.
    sides, angles
  • What type of angle?
    Obtuse
  • Classify this triangle by its sides and angles.
    Right Scalene
  • What tool is used to measure angles?
    Protractor
  • What type of angle am I?
    Right
  • Classify this triangle by its sides and angles
    Right Isosceles
  • What does angle CBD measure?
    50°
  • What does this angle measure?
    14°
  • What does this angle measure?
    15°
  • What type of angle?
    Acute
  • What does angle CBD measure?
    89°
  • What does this angle measure?
    35°
  • What type of angle?
    Acute
  • What does angle MNO measure?
    41°
  • Classify this triangle by its sides and angles.
    Acute Equilateral
  • What does this angle measure?
    120°
  • What type of angle am I?
    obtuse angle
  • What type of angle am I?
    Acute
  • What does this angle measure?
    145°
  • Classify this triangle by its sides and angles.
    Obtuse Isosceles
  • What does angle ABC measure?
    153°
  • What does this angle measure?
    60°
  • What type of angle?
    Obtuse
  • Bresden said he can draw an obtuse equilateral triangle. Is he correct?
    Bresden is not correct because equilateral triangles have only acute angles.
  • What does this angle measure?
    47°
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