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

  2.   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

  3.   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. all answers are correct B. 10
    C. 5 D. 3
    Hint

  4.   Which set of ratios is equivalent?
    A. and B. and 3:2
    C. 4:3 and D. 2:7 and 8:14
    Hint

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



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