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3 years ago

10

Which counterexample shows that the conjecture "Every parallelogram is also a rectangle" is false?

2 answers:

mafiozo [28]3 years ago

5 0

A parallelogram without four right angles would prove that to be false.

Ivanshal [37]3 years ago

3 0

Yep that'd be false since they are also rectangles

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