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square feet
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The five smallest states by area are Rhode Island, Delaware, and Connecticut. In addition, New Jersey, and New Hampshire are among the five smallest states.
76 Area = 361 = (side length)^2. This tells us that the length of a side is 19. Perimeter = 4*(side length) = 4*19=76.
d/3 (1st coordinate + last coordinate) + (4*sum of even coordinates) + (2*sum of odd coordinates)