एक 3 decimeter त्रिज्या वाले गोले को पिघलाकर एक 1 millimeter मोटी वृत्ताकार चादर के रूप में परिवर्तित किया गया। वृत्ताकार चादर का व्यास ज्ञात करें?A. 26 metresB. 24 metresC. 12 metresD. 6 metres

एक 3 decimeter त्रिज्या वाले गोले

1.	एक 3 decimeter त्रिज्या वाले गोले को पिघलाकर एक 1 millimeter मोटी वृत्ताकार चादर के रूप में परिवर्तित किया गया। वृत्ताकार चादर का व्यास ज्ञात करें?A. 26 metresB. 24 metresC. 12 metresD. 6 metres
Answer» Correct Answer - D Radius `=3` Decimetres `=30cm` Height of circular sheet `=1mm=0.1m` `implies 4/3pixx(30)^(3)=pir^(2)xx1/10` `implies r^(2)=sqrt(10000xx9xx4)` `implies r=600cm=6` metres

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