1.   Identify the part of the circle.
   
    A. diameter B. center
    C. D. radius
    Hint

  2.   Identify the part of the circle represented by .
   
    A. none of these B. radius
    C. center D. diameter
    Hint

  3.   Identify the part of the circle represented by .
   
    A. radius B. radius
    C. none of these D. diameter
    Hint

  4.   Identify the part of the circle represented by .
   
    A. radius B. center
    C. diameter D. none of these
    Hint

  5.   Which of the following statements is not true?
    A. The diameter of a circle is always longer than its radius.
    B. The radius of a circle includes the center of the circle.
    C. The diameter of a circle includes the center of the circle.
    D. The radius of a circle includes two points on the circle.
    Hint