Anybody good at geoemtry?!?

okay so, my teacher said that i need to reasearch this geometry term, QED. wat does it mean? he always writes it after we do proofs.

Update:

and i do know how to spell what, im not stupid, but why do we use it at the end of proofs? what does it do?

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  • Mamie
    Lv 7
    1 decade ago
    Favorite Answer

    QED is an abbreviation from Latin. It means Quad Erat Demonstratum -- thus it is proven.

    It's what's used at the end of a proof.

    By the way, I hope you know that WHAT is spelled WHAT, not wat...

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