6. A circular flower bed has a diameter of 100 cm. A
metal boundary costing2 per metre placed around
it. Find:
(a) cost of metal boundary required to fence it twice (use r=3.14
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Answer:
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given the diameter of the circular flower bed = 100cm = 1m
therefore radius of the flower bed = 1/2 = 0.5m
circumference of the circular flower bed = 2πr
= 2 × 22/7 × 0.5
= 22/7m
ATQ, the cost of fencing is rs w at the rate per m.
hence, total cost of fencing = 22/7 × 2
= 44/7
= rs 6.28 (approx.)
Hope it helps you ✌️✌️❤️❤️
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