👉 A trapezoid is a quadrilateral with one pair of parallel sides. It has two pairs of opposite sides that are equal in length and a third side that is not parallel to either pair of base sides. In geometry, a trapezoid can be defined as follows: - The base of the trapezoid is a straight line segment. - The two non-parallel sides of the trapezoid are called bases. They meet at right angles (or at their endpoints