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Vectors : Quadrilateral is a Square

Show that the quadrilateral with vertices A = (-3, 5, 6), B = (1, -5, 7), C = (8, -3, -1),
D = (4, 7,-2) is a square.

Solution Preview

Proof. We can compute the lengths of AD, BC, AB, AC, BD and Cd as ...

Solution Summary

A quadrilateral is proven not to be a square.

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