1.   and are similar. Find x if z = 3, a = 6,
and c = 4.5.
   
    A. 9 B. 4
    C. 7.5 D. 2.25
    Hint

  2.   Which triangle is not similar to the other three?
   
    A. ABC B. GHI
    C. DEF D. JKL
    Hint

  3.   The two triangles shown are similar by __________.
   
    A. ASA Similarity B. SSS Similarity
    C. SAS Similarity D. AA Similarity
    Hint

  4.   What is the measure of ?
   
    A. 7.2 B. 9
    C. 5.14 D. 8.75
    Hint

  5.   Which of the following is not necessarily true concerning similar triangles?
    A. Each triangle has angles whose sum is 180°.
    B. The measures of their corresponding angles are equal.
    C. The measures of their corresponding sides are proportional.
    D. The measures of their corresponding sides are equal.
    Hint