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Mathematics, 15.04.2020 22:18 GreenHerbz206

All quadrilaterals have at least one pair of congruent sides.

Which of the following is a counterexample to this conjecture?
A. a rectangle that is not a square
B. a parallelogram that is not a rhombus
C. a trapezoid that is not isosceles
D. a parallelogram that is not a rectangle

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All quadrilaterals have at least one pair of congruent sides.

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