Question 1 • Foundations of Math 1
For a rectangle, the length, width, and diagonal must satisfy the Pythagorean theorem: length² + width² = diagonal². Fabric 1 works because 5² + 12² = 13², Fabric 2 because 8² + 6² = 10², and Fabric 6 because 8² + 15² = 17². The other fabrics’ measurements do not satisfy this rule, so the correct pieces are Fabric 1, Fabric 2, and Fabric 6.
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