Applied Mechanics and Graphic Statics
For a non-concurrent force system to be in equilibrium

None of these
Only the closure of funicular polygon is sufficient
Only the closure of force polygon is sufficient
Both force polygon and funicular polygon must close

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Applied Mechanics and Graphic Statics
The resolved part of the resultant of two forces inclined at an angle θ in a given direction is

Sum of the forces multiplied by the tangent θ°
Difference of the forces multiplied by cosine θ°
Arithmetical sum of the resolved parts of the forces in the direction
Algebraic sum of the resolved parts of the forces in the direction

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