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  • ______ lines never meet each other.
    parallel
  • When the angle is 180 degree, it is a(an) _______ angle
    straight
  • when the angle is smaller than 90 degree, it is a(an) ______ angle
    acute
  • find the missing letter: I N T _ R S E_T I N G
    E, C
  • when the angle is 110 degree,it is a(an) _____ angle
    obtuse
  • A line has no ______
    endpoint
  • Fill in the blank: Line segment has ____ endpoint
    two
  • FInd the missing letter: P_IN_
    O,T
  • How many types of angles?
    four types
  • A ray has ____ endpoint.
    one
  • Perpendicular lines meet at a ____ angle
    right