The width of a rectangle is three times its height. If it has an area of 60.75 square feet, what are its dimensions?

Let the height be h, so the width is 3h. The area is (3h)(h) = 3h² = 60.75, which gives h² = 20.25 and h = 4.5 feet. The width is 3 × 4.5 = 13.5 feet, so the dimensions are 13.5 ft by 4.5 ft.

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