Angles

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Supplementary, Complementary, Adjacent, Opposite


  • 1. Vertical Angles
  • 2. Adjacent angles
  • 3. Complementary and Supplementary Angles
  • 4. Congruent angles

1.

Vertical Angles

Vertical angles are formed by intersecting lines. <AED and <CEB are vertical angles. <AEC and <DEB are vertical angles.
Use points A, B, C, and D to change the angle values. Make a conjecture about the angle measures of a pair of vertical angles.
– GeoGebra Materials Team

2.

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3.

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4.

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