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Write the negation of the following:
Every rectangle with four equal sides is a square.

A) No rectangle with four equal sides is not a square.

B) Every square with four equal sides is not a rectangle.

C) Every rectangle with four equal sides is not a square.

D) No square with four equal sides is a rectangle.

I think the answer is B

  • math -

    All squares are rectangles, but not all rectangles are squares. Although they should not be using a double-negative, A means the same as "A rectangle with four equal sides is a square."

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