If the cost of gardening is Rs.10 per sq.metre , what will be the cost of gardening the circular region in the middle.
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Step-by-step explanation:
Let r meter be the radius of circular field C, then
Area of circular field C × 10 = 3465
⇒ Πr^2× 10 = 3465
⇒ r^2 = 441/4m
⇒ r = 21/2m
Side of square field S = 2 × r = 21m
Perimeter of square field = 4 × 21 = 84 meters
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