The discussion focuses on calculating the lengths of the diagonals of a parallelogram defined by the vectors u = <-2, -2> and v = <-10, -2>. The correct approach involves using vector addition and subtraction, where the main diagonal is represented by u + v and the other diagonal by u - v. The user initially overcomplicated the problem by attempting to use trigonometry instead of directly applying vector operations. This highlights the importance of understanding vector properties in geometry.
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Not really. If u = <-2, -2> and v = <-2, -10> are your two vectors, a vector that represents the main diagonal of the parallelogram is u + v. The other diagonal is given by u - v.Larrytsai said:Homework Statement
Find the length of the two diagonals of a paralellogram with the sides (-2,-2) and (-10,-2)
Homework Equations
The Attempt at a Solution
What I have tried is, I drew out the 2 vectors, and then drew out their components and used trig to find the angles where the connect. I also found the magnitude of both the vectors.
Am i on the right track?