Question

triangle law of additon defanniton

Answer 1

Sum of all three angles or sides of a triangle is 180 degree.i.e A+B+C=180

Answer 2

Triangle law of addition is a geometrical way of addition of two vectors.
Two co-planar vector A and Vector B can be added by using the triangle law considering them along the two sides of a triangle.Then the closing side of a triangle opposite direction will give the resultant vector.