Question

Keegan says that a quadrilateral is a square if and only if it is a rectangle. Is this a true biconditional statement?


a) Yes, because all squares are rectangles.


b) No, because all squares are not rectangles.


c) Yes, because all rectangles are squares.


d) No, because all rectangles are not squares.

Answer 1

That would be a  
Every square  is also a rectangle.