Answer:
Let ABCD be the rectangular park and the shaded region represents the 2.5 wide path to be constructed outside the park. We have, PQ = (45 + 2.5 + 2.5) m = 50 m, PS = (30 + 2.5 + 2.5) m = 35 m Clearly, Area of the path = Area of rectangle PQRS - Area of rectangle ABCD \[=\left( 50\times 35 \right){{m}^{2}}-\left( 45\times 30 \right){{m}^{2}}\] \[=1750{{m}^{2}}-1350{{m}^{2}}=400{{m}^{2}}\]
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