Which statement about quadrilaterals is false?
  1. All quadrilaterals are trapezoids, but not all trapezoids are quadrilaterals
  2. All squares are rhombuses, but not all rhombuses are squares
  3. All rectangles are trapezoids, but not all trapezoids are rectangles
  4. All rhombuses are parallelograms, but not all parallelograms are rhombuses
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Can you answer 10 correctly?