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

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

  3.   What type of angle is shown below?
   
    A. obtuse B. right
    C. acute D. straight
    Hint

  4.   A skateboarding ramp is constructed with an angle of elevation of 40°. Classify this angle.
    A. obtuse B. straight
    C. right D. acute
    Hint

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



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