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Which statements are correct about quadrilaterals A;all squares are rhombuses B:all rectangles are parallelograms C :All rhombuses are trapezoids or D:All 4-sided shapes have at least one pair of parallel lines.

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truemkhai
All rectangles are parallelograms ⇒ True.

All squares are rectangles ⇒ True

All squares are rhombuses ⇒ True, well... um, sometimes it is. But the answer is True.

All rhombuses are trapezoid ⇒ False.