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Mathematics 9 Online
OpenStudy (anonymous):

A polygon has an area of 144 square inches and one of its sides is 10 inches long. If a second similar polygon has an area of 64 square inches, what is the length of the corresponding side in the second polygon?

OpenStudy (cwrw238):

the ratio of areas = 144:64 so ratio of the sides is sqrt144:sqrt 64 = 12 : 8 so you need to solve 10 : x = 12 : 8

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