Two square rugs, R and S, have a combined area of 20 square feet. If the area of rug R is four times the area of rug S, what is the perimeter of rug S?

Explanation

Rug R must be \(4^{\prime} \times 4^{\prime}\), and rug S must be \(2^{\prime} \times 2^{\prime}\). The perimeter of Rug S is 8 feet.

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