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Mathematics 17 Online
OpenStudy (anonymous):

Which description does NOT guarantee that a quadrilateral is a rectangle? 1) a quadrilateral with four right angles 2) a parallelogram with congruent sides 3) a quadrilateral with diagonals that are congruent and bisect each other. 4) a quadrilateral with all congruent angles.

OpenStudy (anonymous):

2) a parallelogram with congruent sides

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