What is parallel gram law ?

Subject
Level
Highschool
Grade
11

Answer

In mathematics, the simplest form of the parallelogram law(also called the parallelogram identity) 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. Using the notation in the diagram on the right, the sides are (AB), (BC), (CD), (DA). But since in Euclidean geometry a parallelogram necessarily has opposite sides equal

https://en.m.wikipedia.org/wiki/Parallelogram_law

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