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

  2.   Which statement is true?
    A. Doubling the edge length of a cube multiplies the surface area by 8.
    B. Doubling the edge length of a cube multilies the volume by 8.
    C. All pyramids are similar
    D. All cylinders are similar.
    Hint

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

  4.   Find the ratio of the surface areas of these two spheres.
   
    A. 4:01 B. 2:01
    C. 8:01 D. 16:01
    Hint

  5.   These two square pyramids are similar. Find h. (Round to the nearest hundredth.)
   
    A. 5.00 ft. B. 16.48 ft.
    C. 10.24 ft. D. 16.00 ft.
    Hint



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