SOLUTION: Hello guys How can I prove that the diagonals of rectangles do not meet at 90 degrees? (Using geometric proof ofcourse) I know how to prove that rectangles have bisecting di

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Question 1028201: Hello guys
How can I prove that the diagonals of rectangles do not meet at 90 degrees?
(Using geometric proof ofcourse)
I know how to prove that rectangles have bisecting diagonals and are equal lengths.
A---------------------B
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C---------------------D
Please use this rectangle format (placement of letters)
Thanks!!

Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Not quite true - the diagonals of a square (which is technically a rectangle) meet at 90 deg angles.

For rectangles that are not squares, you can assume (for sake of contradiction) that the diagonals do meet at 90 deg angles. Try to form some sort of contradiction. An example of a contradiction could be that the fact implies the rectangle is a square.