SOLUTION: How do i write a proof or just explain why the rhombus' diagonals are congruent.

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Question 690844: How do i write a proof or just explain why the rhombus' diagonals are congruent.
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!
The diagonals of a rhombus are NOT congruent (unless the
rhombus happens to be a square.)  A rhombus is a diamond-shaped
quadrilateral like this:

       

You can easily see that those two green line above are NOT
congruent.  The only exception is when the rhombus is a
square as shown below -- then they are CONGRUENT.  But
they are not CONGRUENT in general.

       

Edwin