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in Perimeter and Area of Plane Figures by (65.2k points)

A path 1 m wide is built along the border and inside a square garden of side 30m. Find :
(i) the area of the path
(ii) the cost of planting grass in the remaining portion of the garden at the rate of Rs 40 per m2.

1 Answer

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by (65.5k points)
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Best answer

(i) Area of KLMN = side × side = 30 × 30

Area of ABCD = 30 – (1 + 1) = 28

= 28 × 28

= 784 sq mts

(ii) Area of the path = Area of KLMN – Area of ABCD

Cost of planting grass = Rs 40 / sq m

∴ Total cost of planting = 784 × 40

= Rs 31.360

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