1.   Which set of figures must be congruent?
    A. two pentagons with all sides 2 in. long
    B. all answers are correct
    C. two triangles with all sides 2 in. long
    D. two quadrilaterals with all sides 2 in. long
    Hint

  2.   The triangles below are congruent. Find a.
   
    A. a = 7 B. a = 6
    C. a = 8 D. a = 5
    Hint

  3.   A triangle has sides of 6 in., 9 in., and 15 in. It is scaled to make a new triangle with one side that is 3 in. What might the scale factor be?
    A. B.
    C. all answers are correct D.
    Hint

  4.   A triangle has sides of 2 cm, 3 cm, and 4 cm. It is scaled to make a new triangle with one side that is 10 cm. What might the scale factor be?
    A. 10 B. 3
    C. all answers are correct D. 5
    Hint

  5.   The triangles below are similar. Find x.
   
    A. 1 B. 2
    C. 5 D. 10
    Hint



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