**Parallelogram Law of Forces**

When two forces act at a particular point on the plane that shows two adjacent sides of parallelogram and have magnitude and direction, the resultant will represent the diagonal of the parallelogram passing though the same point having its magnitude and direction. This is parallelogram law of forces.

**Triangular Law of Forces**

If two forces act at a point on the plane having magnitude and direction, then the closing side of the triangle gives the resultant with its magnitude and direction (taken in the same order). This is called triangular law of forces.

**Links of Previous Main Topic:-**

- Fluid statics introduction
- Manometers measurement pressure
- Fluid kinematics
- Bernoullis equation
- Basics and statics of particles introduction
- Units and dimensions

**Links of Next Mechanical Engineering Topics:-**

- Vectors
- Resolution and composition of a force
- Coplanar forces
- Resultant of coplanar forces
- Equilibrium of a particle
- Equilibrium of a rigid body
- Forces in space
- Equilibrium of a particle in space
- Equivalent system of forces
- Principle of transmissibility
- Single equivalent force
- Highlights of basics and statics of particles
- Equilibrium of rigid bodies introduction