How would you prove that the diagonals of a rectangle are congruent?

we don't know anything

1 Answer
Mark D.
Jun 20, 2018

The two short sides of a rectangle are equal
The two long sides of a rectangle are equal
They both have 90 degree angles

So you have two triangles that are congruent by SAS Side Angle SIde
Therefore the diagonals are equal

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