1.   The common endpoint of two rays is called a(n)
    A. vertex B. angle
    C. degree D. side
    Hint

  2.   A name for the angle shown is ________.
   
    A. B.
    C. D.
    Hint

  3.   Use a protractor to measure .
   
    A. 65 B. 115
    C. 100 D. 180
    Hint

  4.   Classify the given angle.
   
    A. acute B. obtuse
    C. straight D. right
    Hint

  5.   A mirror reflected a ray of light 145°. Classify the angle of reflection.
    A. obtuse B. straight
    C. acute D. right
    Hint



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