Mathematics · Mensuration
एक तार की त्रिज्या घटाकर उसके मूल मान की एक-तिहाई कर दी जाती है। यदि आयतन समान रहता है, तो उसकी लंबाई मूल लंबाई की कितनी गुना हो जाएगी?
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