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If your Slenderness Ratio is more than 12 then it's a long column or if it's less than 12 then it's called short column.
Long Column ( I / b ) > 12 or I/r > 40
I = effective length / r = Radius of gyration / b= Least dimension
I/r is slenderness ration and it should be =<40 / this is for Steel ! Remember !
THIS IS FOR YOUR INFORMATION ,
option D-50 is the correct answer
the amount of slenderness option D=50
c. 40
(Answer should contain a minimum of 25 characters.)?
the slenderness ratio for RCC columns answer is (c. 40)
I think the correct answer is D = 50
thanks for invition my choice is option D