Parallalogram Law of Vectors The simplest form of the parallelogram law belongs to elementary geometry. It states that the sum of the squares of the lengths of the four sides of a parallelogram equals the sum of the squares of the lengths of the two diagonals. We use these notations for the sides: AB, BC, CD, DA.
Solved Examples for You
Answer : According to the Parallelogram law of vector addition, if two vectors \vec{a} and \vec{b} represent two sides of a parallelogram in magnitude and direction, then their sum \vec{a} + \vec{b} = the diagonal of the parallelogram through their common point in magnitude and direction.
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