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daser333 [38]
3 years ago
11

How do I prove that a quadrilateral is a rectangle?

Mathematics
2 answers:
erica [24]3 years ago
8 0
There are a few criterias...
One angle is a right angle
Two pairs of opposite sides that are congruent
Congruent diagonals
Opposite sides are parallel...

Hope this helps please give me a 5-rate, thanks, and brainliest!
maw [93]3 years ago
7 0
I think you want to prove that a rectangle is a quadrilateral. You can prove this with definitions. The definition of a quadrilateral is that it is a shape with four sides. Since a rectangle has four sides, that proves that a rectangle is a quadrilateral. 
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