A rectangular plot of land is 100 feet long and 50 feet wide. How long is the walkway along the diagonal? Round to the nearest foot.

The diagonal is the hypotenuse of a right triangle with legs 100 feet and 50 feet. By the Pythagorean theorem, its length is √(100² + 50²) = √12,500 ≈ 111.8 feet, which rounds to 112 feet. The correct choice is C, 112 feet.

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