A trapezoid has four corners.
To explain further, a trapezoid is a type of polygon. All polygons are defined by their sides and corners, also known as vertices. A trapezoid specifically has two sides that are parallel and two sides that are not. Regardless of the specific shape or dimensions of the trapezoid, it always retains its basic property of having four sides and, consequently, four corners. These corners can be referred to as the points where the sides of the trapezoid meet.