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Diagonal of the floor D = 7.5 ft. Breadth of floor b = 4.5 ft. Let the length of the floor be x ft. As we know, D2 = x2 + b2 7.52 = x2 + 4.52 x2 = 56.25-20.25 x2 = 36 x = √36 = 6 ft. Length of the rectangle x = 6 ft. Area of the rectangle = x x b = 6 x 4.5 = 27 square ft.
18, 30, 54, 90, 138, ?
8 27 64 125 ? 343
...110, 156, 212, ?, 354, 440
362 452 550 656 770 892 ?
...32 48 96 ? 720 2520
221, 100, 0, -81, ?
...289 169 121 ? 25 9
...9, 20, 63, ?, 1285, 7716
144, 288, 96, 384, 76.8, ?