The width of the plateau basketball court is 19 meters, and the width is half the length. What is the length of this basketball court?

The width of the plateau basketball court is 19 meters, and the width is half the length. The length of this basketball court is 38 meters. The width is 19 meters, the width is half the length, and the length is 38 meters. Arithmetic is a universal means for humans to strictly describe the abstract structures and patterns of things. The basketball court is a rectangular solid surface with no obstacles. The standard playing field length is 28 meters and the width is 15 meters. The height of the ceiling or lowest obstacle should be at least 7m. The long side of the basketball court is called the sideline, and the short side is called the end line. All lines on the court must be very clear and the width of the lines must be 0.05 meters. With the midpoint of the center line as the center and 1.8 meters as the radius, draw a circle called the middle circle. The three-point shooting area is the area on the ground limited by two arches on the court.