Log mean area ‘A’ of cylinder can be given as

1.	Log mean area ‘A’ of cylinder can be given as
A.	\(\frac{{\log A_2 - \log A_1}}{{A_2 - A_1}}\)
B.	\(\frac{{A_2 - A_1}}{{\log A_2 - \log A_1}}\)
C.	\(\frac{{\log A_2 - \log A_1}}{{\log \left( {\frac{{A_2}}{{A_1}}} \right)}}\)
D.	None
Answer» C. \(\frac{{\log A_2 - \log A_1}}{{\log \left( {\frac{{A_2}}{{A_1}}} \right)}}\)

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Log mean area ‘A’ of cylinder can be given as

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