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Quadrilaterals

What quadrilateral has four 90 degree angles, but not all sides are congruent ?

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a rectangle?
tutordevon
14 January 2013
Thank you guyss sooo much !!
smart_andpretty
15 January 2013
smart and pretty - a quick tip if it can help you understand better. If a quadrilateral has all four 90 degrees then it is either a square or a rectangle. In the case of a square all the sides are congruent. In the case of a rectangle only opposite sides are congruent - in other words for a rectangle not all sides are congruent. Hence Rectangle is your correct question. Let me know if I can help you understand the concepts of quadrilateral, square, rhombus, trapezium, congruent sides, etc. with simple and easy to understand pictures!
justwhatyouneed
19 January 2013
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