Section 6.6

A trapezoid is a quadrilateral with one pair of parallel lines and one pair of non parallel lines. The the sides consecutive to each of the parallel sides are called legs. If these legs are congruent that means that the trapezoid is an isosceles. Subsequently the base angles or the angles opposite the shorter parallel side are also congruent. This also works in reverse. The median of a trapezoid is created by connecting the midpoints of both the legs with a line segment. The median is parallel to the opposite bases and its distance equals the average of the two bases.