A gardner wants to fence a circular garden of diameter 42m. Find the length of the barbed wire he needs to purchase, if he makes 3 rounds of the fence
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3×2 πr = 3×2×22/7×21=396 m
riyayagyik:
396 s rgt ans or not 1st let me know
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3×2 πr = 3×2×22/7×21=396 m
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