एल गोले के पृष्ठीय क्षेत्र – McqOptions

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1.	एल गोले के पृष्ठीय क्षेत्रफल तथा उसके परिगत बेलन के वक्र पृष्ठ का अनुपात क्या होगा ?
A.	5:7
B.	4:7
C.	7:11
D.	1:1
Answer» E.

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