Mathematics · Mensuration
यदि किसी लम्ब वृत्तीय बेलन के आधार की त्रिज्या उसकी ऊंचाई को समान रखते हुए आधी कर दी जाए, तो कम किए गए बेलन के आयतन का मूल बेलन के आयतन से क्या अनुपात होगा?
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