Some parallelograms are rectangles; all rectangles are parallelograms.
In fact, some are rectangles, but not all are.
All rectangles are parallelograms, so yes there are some.
Yes. All rectangles are also parallelograms, but not all parallelograms are rectangles.
No. Only some parallelograms are rectangles. But all rectangles are parallelograms.
By definition, all squares are parallelograms. Not all parallelograms, however, are squares. All rectangles and rhombuses are also parallelograms.
parallelograms.
All of them are.
false
True
No. Rhombuses that are also rectangles are called squares. Rhombuses are parallelograms with 4 equal sides, while rectangles are parallelograms where all the angles are right.
Some of them (rectangles) do.