a parallelogram has parallel opposite sides and its opposite angles are congruent
The answer depends on what characteristic you wish to measure: the lengths of the sides, the angles, the lengths of the diagonals, perimeter, area, temperature, colour, and so on.
yes
No.
no
4
Yes.
yes
No, a parallelogram is not a trapezoid.
It is a special kind of parallelogram.
parrallelogram
180. Degrees
A rhombus