No. Only some parallelograms are rectangles. But all rectangles are parallelograms.
Some parallelograms are rectangles; all rectangles are parallelograms.
yes, it is true
Yes
yes
In fact, some are rectangles, but not all are.
No. Only some parallelograms are rectangles. But all rectangles are parallelograms.
Some parallelograms are rectangles; all rectangles are parallelograms.
All of them are.
false
True
Some of them (rectangles) do.
yes, it is true
Yes
yes
Yes.
yes. rectangles are just the special cases of parallelograms where the angles are all 900