The graphical condition for equilibrium of concurrent forces is that

1.	The graphical condition for equilibrium of concurrent forces is that
A.	both the force polygon and the funicular polygon must be closed figures
B.	funicular polygon should be a closed figure
C.	force polygon need not be a closed figure
D.	force polygon should be a closed figure
Answer» B. funicular polygon should be a closed figure

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The graphical condition for equilibrium of concurrent forces is that

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