How To: Dissect the geometrical quadrilateral trapezoid

If you've ever had problems with trapezoids in the past, this math lesson should clear some things up. A trapezoid is a geometrical shape, a quadrilateral, that has only one pair of parallel sides. Outside of the US, it's referred to as a trapezium. Yay Math breaks down the properties of trapezoids, including the isosceles trapezoid, the legs of the trapezoid and the median of the trapezoid.