Based on the information given the side length of square 3 is 10 feet.
Side length of square 3:
Given:
Perimeter of square 1 =104 ft
Area of square 2=576 ft
Side length of square 3=?
Using Pythagorean theorem formula to determine the side length of square 3.
Hence,
AB=1/4×104=26ft
BC=√576=24ft
Thus,
AC=√AB²-BC²
AC=√26²-24²
AC=√676-576
AC=√100
AC=10 feet
Inconclusion the side length of square 3 is 10 feet.
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