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Section 4
Section 4
Section 4
Section 4
Section 4
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Section 4

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Transcript

  • 1. 1.4 Angle Measure
  • 2. Measure Angles
    • A ray is part of a line. It has one endpoint and extends indefinitely in one direction.
    • If you choose a point on a line, that point determines exactly two rays called opposite rays.
    • An angle is formed by two noncollinear rays that have a common endpoints. The rays are called sides of the angle. The common endpoint is the vertex.
  • 3. Example
    • Name all the angles that have G as a vertex
    • Name the sides of angle 5
    • Write another name for angle 2
  • 4. Classify Angles
    • Right Angle:
    • Acute Angle:
    • Obtuse Angle:
  • 5. Congruent Angles
    • Angles that have the same measure are congruent angles. Arcs on the figures indicate which angles are congruent.

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