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Basketball court introduction The basketball court is a rectangular solid plane, its standard dimensions are 28 meters long, 15 meters wide, and all lines are 0.05 meters wide. There are various areas and lines on the site, as follows: Center circle: A circle with the center point of the center line as the center and a radius of 1.80 meters. Three-point shooting zone: The area of the floor bounded by two arches on the court from which a shot is scored. Restricted area (three-second area) : The ground area composed of the two ends of the free throw line drawn to the middle point of the end line each 3 meters, limiting the player's stay in this area. Penalty area: includes the restricted area and the free throw line plus a semicircle area with the center point of the free throw line as the center and the radius of 1.80 meters to the outside of the restricted area for the execution of free throws. Edge and end line: The long side is called the edge line, the short side is called the end line. Middle line: the horizontal line drawn from the middle of the edge line to the end line, extending 0.15 meters to the outside of each side line. Reasonable impact zone: Draw a semi-circle area with a radius of 1.25 meters from the center of the basket to the ground.
场地要求 According to the FIBA competition standard, the standard basketball court is a rectangle, 28 meters long, 15 meters wide, and the width of the line on the court is 0.05 meters. There is a circle in the middle of the court for the opening jump ball, with a radius of 1.8 meters. The two sides of the court are symmetrical, the three-point line is 6.75 meters, the NBA three-point line is a little longer, 7.25 meters. Inside the three-point line there is a small semi-circle, there is a straight line parallel to the front backboard, the distance from the line to the bottom line is 5.8 meters, which is the distance of the free throw line, the NBA free throw line is also 5.8 meters. In the free throw line 5.8 meters long and 4.9 meters wide area, collectively known as the three-second zone, this area will be restricted by the three-second attack and three-second defense rule. In addition, there is a 1.25-meter semi-circle under the basket, this area is a reasonable collision zone, and the player will not be judged as an offensive foul when attacking in this area. The diameter of the basket is 45 cm, the height of the basket is 3.05 meters from the ground, and the lower edge of the backboard is 2.9 meters from the ground.
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