false
No, not normally
true!! apex.
Parallelograms are a special form of quadrilaterals (four sided polygons). Parallelograms have 2 sets of parallel sides. So you could say that all parallelograms are quadrilaterals. Or you could say that all parallelograms are polygons. I'm not sure what you are asking.
Some parallelograms could be quadrilaterals but all parallelograms are polygons
false
No, not normally
true!! apex.
Parallelograms are a special form of quadrilaterals (four sided polygons). Parallelograms have 2 sets of parallel sides. So you could say that all parallelograms are quadrilaterals. Or you could say that all parallelograms are polygons. I'm not sure what you are asking.
Some parallelograms could be quadrilaterals but all parallelograms are polygons
No. Because tessellation is about using lost (infinitely many) copies of a polygon to cover a surface, One polygon does not comprise a tessellation.
Tessellation is the filling of a plane area with non-overlapping plane shapes, or tiles. A synonym could be tiling, or wallpapering, or honeycomb.
beacuse he could
It is sometimes true that two parallelograms are similar. The could be congruent, or dissimilar in that one is not an enlargement of the other.
What are tessellations? A tessellation is a series of shapes that cover a plane without any gaps. It could be like the tile in your shower. This concept was turned into art by M. C. Escher. More background can be found at the related link below.
They could be congruent, but not necessarily. It cannot be assumed that they are.
Assuming that you mean non-symmetrical, the answer is yes.