A trapezoid looks like this: As in anything to do with mathematics, we need to refine our question and know exactly what we are looking for. Here we want to know whether this shape (trapezoid) is a parallelogram or not. read more
Never. A trapezoid is a quadrilateral with exactly one pair of parallel sides. A parallelogram is a quadrilateral with both pairs of opposite sides parallel. read more
A trapezoid has one pair of parallel sides and a parallelogram has two pairs of parallel sides. So a parallelogram is also a trapezoid. Carlos says, No - a trapezoid can have only one pair of parallel sides. Niko says, That’s not true. A trapezoid has at least one pair of parallel sides, but it can also have another. read more