The surface area of a rectangle prism is 166 square feet. The surface area of a similar rectangular prism is 1494 square feet. If the length of the smaller prism is 5 feet, what is the length of the larger prism?



Answer :

The ratio surface area of two similar rectangular prism has the relationship of square time of the ratio of length. So the 1494/166=9=3². So the length of two has ratio of 3. So the length of the larger one is 5*3=15 feet.

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