Question 1192108
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Two similar rectangular prisms have an edge of the proportion of 3:5. 
If the smaller prism has a surface area of 69 m.squared, Find the surface area of the bigger prism. 
If the bigger prism has a volume of 500 cubic meters, find the volume of the smaller prism.
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Regarding your first question, multiply the surface area of the smaller cylinder,

which is 69 m^2, by the square of the similarity coefficient,  {{{(5/3)^2}}}.


multiply the surface area of the smaller cylinder,

which is 69 m^2, by the cube of the similarity coefficient,  {{{(5/3)^3}}}.


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Be aware: calculations in the post by Alan are INCORRECT !