If a parallelogram has a right angle it is a rectangle.
All rectangles are parallelograms, so yes there are some.
No. Only some parallelograms are rectangles. But all rectangles are parallelograms.
Some parallelograms are rectangles; all rectangles are parallelograms.
yes, it is true
Yes
It is NOT as case of 'Some'. It is ALL rectangles are parallelograms.
All rectangles are parallelograms, so yes there are some.
No. Only some parallelograms are rectangles. But all rectangles are parallelograms.
Some parallelograms are rectangles; all rectangles are parallelograms.
false
All of them are.
True
Yes.
yes, it is true
Some of them (rectangles) do.
Yes
yes