A parallelogram is a quadrilateral in which both pairs of opposite sides are type of quadrilateral because it has four right angles and two pairs of parallel sides.
A quadrilateral also has four angles formed by its four sides. Let's start by examining the group of quadrilaterals that have two pairs of parallel sides. A square is also a rectangle because it has two sets of parallel sides and four right angles.
A Rhombus has got 4 sides of equal length and opposite sides are parallel and angles are equal. (It looks It has got 2 pairs of equal sides and 4 right angles.

Quadrilateral has 2 pairs of parallel sides - contesting will

Note: Similar arrow markings indicate that the sides are parallel. Also see this on Interactive Quadrilaterals Try drawing a quadrilateral, and measure the angles. Why discuss the angles? Part II: Build another grid and use it to investigate a different. Now that you know the different types, you can play with the Interactive Quadrilaterals. Q-U-A-D-R-I-L-A-T-E-R-A-L: The Quadrilateral Rap