Mathematics · Mensuration
यदि किसी लंब वृत्तीय बेलन के आधार की त्रिज्या को उसकी ऊंचाई समान रखते हुए आधा कर दिया जाए, तो घटे हुए बेलन के आयतन का मूल बेलन के आयतन से अनुपात क्या होगा?
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