They are similar because they both have 4 sides.
They are quadrilaterals.
No but they are both 4 sided quadrilaterals
no it does not always have to be a parallelgram it could be a square or rectangle
The two pairs of opposite sides of a square are parallel to one another. That is enough to qualify as a parallelogram.
Not sure about a parallelgram, but a parallelogram has 4.
All of them have, except the pentagon and octagon.
A parallelogram has two pairs of opposite sides which are parallel.
"A parallelgram is a word which is spelled correctly" is a statement which is never true.
No
NO if a rhombus is called a parallelgram you would get destracted 3.gram
Zero
Yes, it is.