Question

Hii buddies. Pls help !!

In a rectangular plot of land 70 m long and 40 m broad, a circular garden of radius 17.5 mis
developed. Find the cost of turfing the remaining portion at the rate of Rs 28.50 per sq. metre.

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Answer 1

Answer:

See the above attachment hope it will help you!!

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Answer 2

Answer:

Explanation:

Area of the plot = 70×40 = 2800 m^2

area of circular gardan = π(17.5)^2 = 962.11 m^2

hence,

the remaining area=2800-962.11=1837.88 m^2

so the cost of turfing = 1837.88×28.50

=Rs 52379.78

2nd question:

sides of square formed by wire = √146.41

= 12.1 m

so, total length of wire = 4×12.1 =48.4m

now, form a circle

perimeter of the circle = total length of wire

=> 2πr = 48.4

=>radius = 48.4/2π = 24.2/π =7.703 m

hence area of the circle = π(7.703)^2

=186.41 m^2