All quadrilaterals have at least one pair of congruent sides.

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

Question

All quadrilaterals have at least one pair of congruent sides.

Which of the following is a counterexample to this assertion?
A.a rectangle that is not a square 
B. a parallelogram that is not a rectangle 
C. a rhombus that is not a square 
D. a trapezoid that is not isosceles

mathstudent55 · Answer

The first three have two pairs of opposite sides that are congruent. A trapezoid that is not isosceles, has no congruent sides.

anonymous · Answer

thanks alot