In fact, some are rectangles, but not all are.
Yes, all rectangles are parallelograms. However, not all parallelograms are rectangles.
All parallelograms are not rectangles. The angles of a parallelogram need not be right angles and so the figure need not be a rectangle.
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.
Yes, rectangles are a special case of parallelogram, with four right angles.
In fact, some are rectangles, but not all are.
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.
All of them are.
false
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