Angles

• Angle pairs


  Two angles that are related to each other

  
• Types of angle pairs

  • Complementary angles
  • Supplementary angles
  • Adjacent angles
  • Vertical angles
  • Linear pairs

  
• Complementary angles


  • The sum of the two angles is 90 degrees

  
• Complementary angles


  • Angle 1 and angle 2

  
• Finding the complement of an angle

  Give the complement of the given angles

  
• Supplementary angles


  • The sum of the two angles is 180 degrees

  
• Finding the supplement of an angle

  Give the supplement of the given angles

  
• Adjacent angles


  • Two angles with a common side and common vertex but no common interior
• Identifying adjacent angles


  In the given figure, give all the adjacent angles

  
• Vertical angles


  • Two non-adjacent angles formed by intersecting lines
  • Measures of vertical angles are congruent

  
• Finding vertical angles


  Give two vertical angles, then get the measure of the angle

  
• Linear pair


  • Two angles that are supplementary and adjacent with each other

  
• Identifying linear pairs


  Give four linear pairs, then get the measure of the angle