It has two pairs of parallel sides.
Squish it!
yes, a rectangle is a parallelogram with right angles.
rectangle
It is a rectangle
A parallelogram is basically a rectangle but slanting.
A square.
No. Every parallelogram is not a rectangle but every rectangle is a parallelogram.
equadilateral
It could be a square, rectangle or a parellelogram.
as far as I know a polygon is anything with more than 3 sides. So technically yes.
Yes. All rectangles have two pairs of parallel sides, though not all parallelograms are rectangles.
A parrellelogram is just a rectangle tilted. If you were to push the ends up straight, you would have a rectangle. So all you do is multiply the base times the height. It's that simple!