1.   Determine whether the triangles are similar. Explain why or why not.
   
    A. yes; y = 55 B. no; y = 65
    C. no; x = 85 D. yes; x = 85
    Hint

  2.   A 6-foot tall person casts a 2.5-foot long shadow at the same time that a building casts a 40-foot long shadow. How tall is the building?
    A. 96 feet B. 16 feet
    C. 104 feet D. 600 feet
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  3.   A tree casts a 20-foot long shadow at the same time that a 3-foot tall mailbox post casts a 1.2-foot long shadow. How tall is the tree?
    A. 8 feet B. 18 feet
    C. 72 feet D. 50 feet
    Hint

  4.   If what is the value of x?
   
    A. 1.5 m B. 7.5 m
    C. 4.25 m D. 106.25 m
    Hint

  5.   If what is the value of x to the nearest tenth?
   
    A. 0.5 feet B. 1.92 feet
    C. 1.3 feet D. 1.8 feet
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