1.   Determine whether the triangles are similar. If not, explain why not.
   
    A. no, b = 40 B. no, a = 30
    C. no, b = 110 D. yes
    Hint

  2.   If two triangles are similar, ______.
    A. then only one pair of corresponding sides is congruent B. then corresponding angles are congruent
    C. then only one pair of corresponding angles are congruent D. then corresponding sides are congruent
    Hint

  3.   P and T are corresponding angles of similar triangles. Find the value of x if mP = 6x° and mT = 78°.
    A. x = 15 B. x = 18
    C. x = 10 D. x = 13
    Hint

  4.   Similar triangles always have _____.
    A. Two congruent corresponding angles with a congruent corresponding side between the angles. B. Three congruent corresponding sides.
    C. Three congruent corresponding angles. D. Two congruent corresponding sides with a congruent corresponding angle between the sides.
    Hint

  5.   Triangle ABC DEF. Each side of ABC is 1 times longer than the corresponding sides of DEF. If the perimeter of ABC is 36 centimeters, what is the perimeter of DEF?
   
    A. 12 centimeters B. 18 centimeters
    C. 24 centimeters D. 54 centimeters
    Hint



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