1.   What is the scale factor between the large cylinder on the left and the similar cylinder on the right?
   
    A. 8:15 B. 10:3
    C. 16:9 D. 4:3
    Hint

  2.   If two similar solids have a scale factor of 5:4, what is the ratio of their surface areas?
    A. 25:16 B. 5:4
    C. 4:5 D. 125:64
    Hint

  3.   If the radius of a sphere is tripled, the volume is how many times as great?
    A. 6 B. 27
    C. 9 D. 3
    Hint

  4.   Determine if the two rectangular prisms are similar, congruent or neither.
   
    A. similar, scale factor = 2:3
    B. neither
    C. similar, scale factor = 4:5
    D. congruent
    Hint

  5.   Find the scale factor of these two cylinders.
   
    A. 1:04 B. 5:09
    C. 1:05 D. 1:08
    Hint



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