The Triangle Law of Vector Addition is a method used to add two vectors. It states that when two vectors are represented as two sides of a triangle in sequence, the third side of the triangle is taken in the opposite direction. It represents the resultant vector in both magnitude and direction.
The triangle inequality says a detour is never shorter than going straight. ‖u + v‖ ≤ ‖u‖ + ‖v‖ Equality holds exactly when u and v are parallel and point the same way; in the general case the direct vector u + v is strictly shorter than following u then v. The same statement reappears for real numbers as |a + b| ≤ |a| + |b| and for integrals as |∫f| ≤ ∫|f|, with the reverse form ‖u‖ − ‖v‖ ≤ ‖u − v‖ often the more useful of the two. This single inequality is what makes a distance a distance.

Inequality In A Triangle
Triangle Inequality Theorem (V1): Students can use this interactive applet to intuitively and informally discover this theorem.
Vectors Vectors represent one of the most important mathematical systems, which is used to handle certain types of problems in Geometry, Mechanics and other branches of Applied Mathematics, Physics and Engineering. Scalar and vector quantities: Those quantities which have only magnitude and which are not related to any fixed direction in space are called scalar […]


Triangle Inequality Linear Algebra
Triangle Inequality theorem - MATHEMATICS & NATURE Proof: For any triangle, the sum of the lengths of any two sides must be greater than or equal to the length of the remaining side.


Vector Trig 1
Prove The Triangle Inequality
Triangle Inequality - YouTube
Inequalities in 1 Triangle: Dynamic & Modifiable Applet










Triangle Inequality Theorem