What's the standard basketball court like?

The specifications of basketball field and basketball field are stipulated according to the rules of basketball game. Standard basketball field is a rectangular flat with a length of 28 meters and a width of 15 meters. The stadium must have clear boundaries. There are no obstacles within at least 2 meters outside the boundary, and there should be at least 2 meters between the boundary and the audience. The boundary of the long side of the stadium is called the sideline, and the boundary of the short side is called the end line. The horizontal line parallel to the end line connecting the midpoint of two sideline lines is called the center line, and the center line should be extended by 15 cm outside the sideline lines on both sides. A circle drawn with the midpoint of the center line as the center and the radius of 1.8 meters is called the middle circle. The free throw line is a straight line parallel to the end line, in which the point must be in a straight line with the midpoint between the end line and the middle line. The area formed by the penalty line and the two diagonal lines connecting the end lines at both ends of the penalty line is called the restricted area (three-second zone). The restricted area plus a semicircle drawn outside the restricted area with the center of the penalty line as the center and the diameter of the penalty line as the penalty area. There are dividing lines on the diagonal lines on both sides of the restricted area for players to use when making free throws. The area outside the arched line at both ends of the field is a 3-point shooting area. Each line on the court must be very clear, and the width of the line is 5 cm. In the measurement of the site, all the lines in the site are counted from the outer edge except the sideline and end line. Basketball court facilities 1. Backboards: Both backboards should be made of transparent materials, preferably reinforced safety glass, whose hardness is equivalent to wood with a thickness of 3 cm. The size of the backboard is 1.8 meters wide and 1.5 meters vertical, and its lower edge is at least 2.9 meters away from the floor. The surface of the backboard should be smooth, and a rectangle with a width of 59 cm and a height of 45 cm should be drawn around the perimeter. The upper edge of the bottom line of this rectangle must be connected with the upper end of the hoop. 2. Basketball: Basketball includes a fence and a net. Basket-Made of solid iron, the inner edge is at least 45cm in diameter and at most 45.7cm in diameter, and painted orange. The minimum diameter of the metal hoop is 1.6 cm and the maximum is 2. cm. Nets-should be white, hanging on the hoop, and its purpose is to make the ball slightly resisted after entering the basket. Nets should have 12 meshes so as to be hung on the hoop, with a minimum length of 4 cm and a maximum length of 45 cm. 3. Ball: Basketball must be a perfect circle with orange color, and its outer skin must be made of leather, rubber or synthetic materials. The degree of air pressure in the ball falls to the playing field at a height of about 1.8 meters from the bottom of the ball, and its rebound height should not be less than 1.2 meters or more than 1.4 meters from the top of the ball. 4. Timer: Timer should be installed in a place where everyone can clearly see it in order to display the game time, the score of both sides and the number of fouls of the team. 5. Thirty-second timer: The 3-second timer shall be automatically timed, with digital countdown and display unit of seconds. 6. Record forms: The record forms of all official competitions organized by international basketball associations shall be examined and approved by the International Basketball Association. 7. Foul times card: It should be on a white background, and the minimum size of the number is 2 cm long and 1 cm wide. 2×2 minutes competition system, the numbers are 1 ~ 5 (1 ~ 4 is black, 5 is red). 4×12-minute competition system, the number is 1 ~ 6 (1 ~ 5 is black and 6 is red). 8. Team foul sign: The team foul sign should be red, at least 2 cm wide and 35 cm high, and placed on the record table for everyone to see clearly. Respondent: Edogawa _ Xinyi-Chief Operating Officer, Level 12, 3-4, 18: -----------------. Standard basketball field is a rectangular flat with a length of 28 meters and a width of 15 meters. The stadium must have clear boundaries. There are no obstacles within at least 2 meters outside the boundary, and there should be at least 2 meters between the boundary and the audience. The boundary of the long side of the stadium is called the sideline, and the boundary of the short side is called the end line. The horizontal line parallel to the end line connecting the midpoint of two sideline lines is called the center line, and the center line should be extended by 15 cm outside the sideline lines on both sides. A circle drawn with the midpoint of the center line as the center and the radius of 1.8 meters is called the middle circle. The free throw line is a straight line parallel to the end line, in which the point must be in a straight line with the midpoint between the end line and the middle line. The area formed by the penalty line and the two diagonal lines connecting the end lines at both ends of the penalty line is called the restricted area (three-second zone). The restricted area plus a semicircle drawn outside the restricted area with the center of the penalty line as the center and the diameter of the penalty line as the penalty area. There are dividing lines on the diagonal lines on both sides of the restricted area for players to use when making free throws. The area outside the arched line at both ends of the field is a 3-point shooting area. Each line on the court must be very clear, and the width of the line is 5 cm. In the measurement of the site, all the lines in the site are counted from the outer edge except the sideline and end line. Basketball court facilities 1. Backboards: Both backboards should be made of transparent materials, preferably reinforced safety glass, whose hardness is equivalent to wood with a thickness of 3 cm. The size of the backboard is 1.8 meters wide and 1.5 meters vertical, and its lower edge is at least 2.9 meters away from the floor. The surface of the backboard should be smooth, and a rectangle with a width of 59 cm and a height of 45 cm should be drawn around the perimeter. The upper edge of the bottom line of this rectangle must be connected with the upper end of the hoop. 2. Basketball: Basketball includes a fence and a net. Basket-Made of solid iron, the inner edge is at least 45cm in diameter and at most 45.7cm in diameter, and painted orange. The minimum diameter of the metal hoop is 1.6 cm and the maximum is 2. cm. Nets-should be white, hanging on the hoop, and its purpose is to make the ball slightly resisted after entering the basket. Nets should have 12 meshes so as to be hung on the hoop, with a minimum length of 4 cm and a maximum length of 45 cm. 3. Ball: Basketball must be a perfect circle with orange color, and its outer skin must be made of leather, rubber or synthetic materials. The degree of air pressure in the ball falls to the playing field at a height of about 1.8 meters from the bottom of the ball, and its rebound height should not be less than 1.2 meters or more than 1.4 meters from the top of the ball. 4. Timer: Timer should be installed in a place where everyone can clearly see it in order to display the game time, the score of both sides and the number of fouls of the team. 5. Thirty-second timer: The 3-second timer shall be automatically timed, with digital countdown and display unit of seconds. 6. Record forms: The record forms of all official competitions organized by international basketball associations shall be examined and approved by the International Basketball Association. 7. Foul times card: It should be on a white background, and the minimum size of the number is 2 cm long and 1 cm wide. 2×2 minutes competition system, the numbers are 1 ~ 5 (1 ~ 4 is black, 5 is red). 4×12-minute competition system, the number is 1 ~ 6 (1 ~ 5 is black and 6 is red). 8. Team foul sign: The team foul sign should be red, at least 2 cm wide and 35 cm high, and placed on the record table for everyone to see clearly.