A student makes the following conjecture: “If a quadrilateral is a rhombus, then it must be a parallelogram.” If someone doesn't believe this conjecture is true, which of the following would be necessary to have a counterexample to it?
W) A rhombus that is a parallelogram
X) A parallelogram that is a rhombus
Y) A rhombus that is not a parallelogram
Z) A parallelogram that is not a rhombus
✔️Answer:Y) A RHOMBUS THAT IS NOT A PARALLELOGRAM
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