The parallel sides are called the bases of the trapezoid and the other two sides are called the legs or the lateral sides (if they are not parallel; otherwise there are two pairs of bases). A scalene trapezoid is a trapezoid with no sides of equal measure, in contrast to the special cases below.
It was designed and built by the Wright brothers. They flew it four times on December 17, 1903, near Kill Devil Hills, about four miles south of Kitty Hawk, North Carolina, US. Today, the airplane is exhibited in the National Air and Space Museum in Washington D.C.
Wright Brothers History. First Airplane Flight. 1903 would become a year for the history books. That year the Wright brothers, Orville and Wilbur Wright, would fly the first powered, controlled, heavier-than-air airplane at Kitty Hawk, North Carolina on December 17, 1903.