Question

Let us write by calculating that how much length of wall in meter is required for walling
outside round the square field, whereas the length of diagonal of the square land is 2012
meter. Let us write by calculating how much cost will be for planting grass at the rate of
gth of diagonal.
20 per sq. meter.​

Answer 1

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We know, that the length of diagonal of square = L√2 units, where L is the side of square

Diagonal of the square = 20√2m

On comparing,

side of the square land = 20m

Also, we know

Area of square = (side)²

Area of the square land = 20²= 400m²

Cost for 1 m² to plant grass = Rs. 20

Cost for 400m² to plant grass = Rs. 20 × 400 = Rs. 8000