A rhombus is a parallelogram in which all four sides have equal length. Show that the diagonals

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A rhombus is a parallelogram in which all four sides have equal length. Show that the diagonals of a parallelogram are perpendicular if and only if the parallelogram is a rhombus. Take an approach similar to the solution in Example 5, and consider x · y.

EXAMPLE 5 Figure 7 shows a parallelogram whose diagonal lengths are x and y and whose side lengths are a and

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Calculus

ISBN: 9781319055844

4th Edition

Authors: Jon Rogawski, Colin Adams, Robert Franzosa

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