18. A rectangular lawn measuring 50 m by 36 m is surrounded externally by a path which is 2 m wide. Find the area of the path. Also, find the cost of levelling the path at 3.25 per m²
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so, => L = 50 + 2 + 2 = 54 m. => B = 36 + 2 + 2 = 40 m. Area of path 360 m².
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