Answer:
Both parallelogram and trapezoid are convex quadrilaterals.
In a parallelogram, both pairs of the opposing sides are parallel while, in a trapezoid, only a pair is parallel.
The diagonals of the parallelogram bisect each other (1:1 ratio) while the diagonals of the trapezoid intersects with a constant ratio between the sections.
Hope this helps have a nice day:) -Jordie-