If, by parellel you mean parallel, the answer is a prism.
Opposite of something
parellel lines
Yes.
Not sure about "parellel" but a quadrangle with two pairs of parallel lines MUST be a parallelogram.
why in parellel .of alternator connected in parellel
How do you draw a quadrangle with no parellel sides?
Nothing. 'parellel' is not a word. therefore nothing can 'be' it.
No.
A hexagon with only one pair of parellel sides
If, by parellel you mean parallel, the answer is a prism.
Opposite of something
No
parellel lines
Parellel lines
Yes.
Not sure about "parellel" but a quadrangle with two pairs of parallel lines MUST be a parallelogram.