$\"\"$

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The area of a square is 49 sq ft. \ \

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Area of the square A = $\"\"$ .

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$\"\"$ (Substitute: A = 49 sq ft)

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$\"\"$ (Take square root to each side) \ \

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$\"\"$ (Write $\"\"$ )

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$\"\"$ ft (Cancel squares and roots)

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The side length s is $\"\"$ .

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$\"\"$

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The side length is $\"\"$ . \ \