What is the geometric mean of two heat transfer areas A1 and A2? – McqOptions

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1.	What is the geometric mean of two heat transfer areas A1 and A2?
A.	√(A1 . A2)
B.	√(A1 + A2)
C.	½ √(A1 . A2)
D.	2 √(A1 . A2)
Answer» B. √(A1 + A2)

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