Which statement is sometimes, but not always, true?

A.
A trapezoid is a quadrilateral.

B.
A parallelogram is a rectangle.

C.
A rhombus is a parallelogram.

D.
A rectangle is a polygon.

@annie.kopliku

Question

Which statement is sometimes, but not always, true?	
 
 A.
A trapezoid is a quadrilateral.
 
 B.
A parallelogram is a rectangle.
 
 C.
A rhombus is a parallelogram.
 
 D.
A rectangle is a polygon.

@annie.kopliku

anonymous · Answer

A trapezoid is a quadrilateral always.
A parallelogram CAN be a rectangle, but most rectangles are parallelograms
A rhombus is a parallelogram always.
A rectangle is always a polygon.