Yes because all parallelograms have four sides.
But the opposite is not true. There are some quadrilaterals that aren't parallelograms.
Chat with our AI personalities
Some are, and some are not. A parallelogram is a special kind of quadrilateral ... one in which every side is parallel to the one across from it. So all parallelograms are quadrilaterals, but there are also a lot of other quadrilaterals that are not parallelograms.
Parallelograms!
No but they are all quadrilaterals
They are quadrilaterals; opposite sides are parallel.
Quadrilaterals do not bisect each other. They could in special cases. In parallelograms (types of quadrilaterals), the diagonals bisect each other.