3:5
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The sides (linear dimensions) of the cubes are in the ratio of 0.6 .
153 = 3375 cubic units
Each side of the cube would be 15cm in length.
3375 cubic meters
The similarity ratio of the two spheres can be found by taking the cube root of the ratio of their volumes. The volume of the first sphere is 20pi m^3 and the volume of the second sphere is 160pi m^3. The cube root of the ratio of their volumes is (160pi/20pi)^(1/3) = (8)^(1/3) = 2. Therefore, the similarity ratio of the two spheres is 2:1.