Applied Mechanics and Graphic Statics
Lami's theorem states that

Three coplanar forces acting at a point will be in equilibrium, if each force is proportional to the sine of the angle between the other two
Three forces acting at a point are always in equilibrium
Three coplanar forces acting at a point will be in equilibrium if each force is inversely proportional to the sine of the angle between the other two
If three forces acting on a point can be represented in magnitude and direction by the sides of a triangle, the point will be in the state of equilibrium

ANSWER DOWNLOAD EXAMIANS APP

Applied Mechanics and Graphic Statics
Free body diagram is an

None of these
Isolated joint with only body forces acting on it
Isolated joint with all the forces, internal as well as external, acting on it
Isolated joint with internal forces acting on it

ANSWER DOWNLOAD EXAMIANS APP