If a rectangle has a perimeter of 36 feet, and it's 4-feet wide, what's its area?

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To find area, multiply length times width (A =lw). To determine the length, subtract two times the width from the perimeter: 36 2(4) = 36 8 = 28. Then divide the remainder by 2 to determine the length of one side: 28 ÷ 2 = 14. Then multiply length times width to determine the area: 14 × 4 = 56.

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