What is the size of a standard basketball, football, volleyball? 5

Basketball: 1. The ball is round and dark orange;

2. The shell is made of leather, glue or synthetic substance;

3. The circumference shall not be less than meters (cm) and shall not be greater than meters (7 8 cm);

4. The weight shall not be less than 567 grams and shall not be more than 650 grams;

5. After inflation, make the ball fall from the height of meters (measured from the bottom of the ball) to the ground of the court, and the height of the ball shall not be lower than meters, nor higher than 0 meters (measured from the top of the ball);

6. The width of the seam or groove of the spherical surface shall not exceed meters (mm).

Volleyball: The weight of the volleyball is 250 300 grams, and the circumference is 65 cm.

Soccer ball: its circumference is not longer than 70 centimeters, not shorter than 68 centimeters, and its diameter is between centimeters.

Basketball: the circumference must not be less than a meter (cm) and not larger than a meter (7 8 cm); Weight No.

less than 567 grams and not more than 650 grams;

Football: The circumference of the ball must not be more than 71 cm or less than 68 cm. The weight of the ball must not be allowed at the start of the game.

More than 453 grams or less than 396 grams.

Volleyball: 26 inches in circumference and weighs between 7 ounces and 9 ounces.

Basketball composite specification model.

The number is generally the standard for basketball. Standard Men's Ball: Weight 567-650g, Circumference 75-78cm, Diameter cm.

After the No. 7 ball is inflated, the ball falls from a height of about meters (the amount of bottom) to the ground of the court, and the height of the hail should be between meters and meters, the width of the ball seam shall not exceed the curved skin by more than centimeters, and the circumference of the ball shall not be less than centimeters.

2. The diameter of various types of basketballs: No. 7 basketball has a diameter of 23-24cm and a weight of 600-650g, which is a standard men's ball; The diameter of the basketball, weighing 510-550g, is a standard women's game ball; The diameter of the basketball, the weight of 470-500g, is the ball for youth competition; The No. 3 basketball has a diameter and a weight of 300-340g, and is a children's game ball.

The standard basketball diameter (db) is 24 6 cm. 1. Standard men's match ball 7: weight 600 650g, circumference 75 standard women's match ball 6:

Weight 510 550 g, circumference 70 Youth Match Ball 5: Weight 470 500g, Circumference 69 Children's Match Ball 3: Weight 300 340g, Circumference 56 57cm.

Extended informationBasketball maintenance 1, should not touch the water: usually need to lift the town to pay attention not to let the basketball touch the water, which will cause the service life of the basketball to be reduced, and the basketball is easy to crack. Key answer envy 2, can not be pressed:

Do not kick or sit on the basketball to rest, and do not press the basketball with heavy objects. 3. Do not expose to the sun: After the basketball is used, wipe the surface of the ball with a cloth, not wash it with a draft, and store it in a cool and dry place.

4. Correct inflation: use a special air needle to slowly insert the ball nozzle to inflate after wetting, it is forbidden to inflate directly with a high-pressure air pump, and the inflation air pressure should be between 7-9 pounds.

The number is generally the basketball calling standard. Standard Men's Ball: Weight 567-650g, Circumference 75-78cm, Diameter cm.

After the No. 7 ball is inflated, the ball falls from a height of about meters (the amount of bottom) to the ground of the court, the height of the ball should be between meters and meters, the width of the ball seam shall not exceed centimeters, and the circumference of the ball shall not be less than centimeters.

2. Diameter of various types of basketballs: No. 7 basket is 23-24cm in diameter and weighs 600-650g, which is a standard men's ball; The diameter of the basketball, weighing 510-550g, is a standard women's game ball; The diameter of the basketball, the weight of 470-500g, is the ball for youth competition; The No. 3 basketball has a diameter and a weight of 300-340g, and is a ball for children's competitions.

The diameter of a standard basketball (db) is centimeters, and the standard weight of a basketball is 600-650 grams.

Summary. The basketball court is 28 meters long and 15 meters wide, and the basketball is measured from the inside edge of the boundary.

What is the length and width of the basketball, football, and volleyball courts?

The basketball court is 28 meters long and 15 meters wide, and the basketball is measured from the inside edge of the boundary.

The soccer pitch must be rectangular and the length of the side must be longer than the length of the goal line. 11-person venue: 68 meters x 105 meters (Tianzheng standard gallery has Tan Ying) 7 people, 5 people Venue size length:

The shortest is 25 meters and the longest is 42 meters; Width: minimum 15 meters, maximum 25 meters. International Contest Imitation Competition:

Length: minimum 38 meters, maximum 42 meters; Width: minimum 18 meters, maximum 22 meters.

Volleyball court perimeter line missing: 18 (L) x 9 (W) m Buffer zone end line spacing: 3 m (normal game) 3 m (FIVB sanctioned match) 9 m (Olympic and World Morning Tournament back to the open).

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1. The volleyball competition field is 18 meters and 9 meters rectangular, with at least 3 meters of open space around it, and there are no obstacles within 7 meters above the field.

2. For the world-class and official competitions of the International Volleyball Association, the barrier-free barricade area is 5 meters from outside the sideline to the end line, and there are at least 8 meters from the end line, and there are no obstacles in the barrier-free competition space at least one meter above the ground.

The standard size of the volleyball court is that the playing field is 18 meters and 9 meters in shape.

It is surrounded by an accessible area at least 3 meters wide. There is an unobstructed space above the playing field that is at least 7 metres high from the ground and free of any obstructions. The barrier-free area outside the edge line of the FIVB World Competition Venue shall be at least 5 metres wide, the width outside the end line shall be at least 8 metres, and the barrier-free space above the playing field shall be at least one metre high.

For the Senior World Championships and Olympic Games, the width of the Changchun Huiji barrier-free zone is at least 6 meters outside the edge line and at least 9 meters outside the end line.

Extended information] 1. Requirements for the ground:

1. The ground of the site must be flat, level, and uniform. The ground of the field must not have any hidden dangers that can harm the players. Matches must not be played on rough, wet or slippery surfaces.

The floor of the FIVB World Competition Venue can only be made of wood or synthetic materials. Any ground must be inspected by the FIVB beforehand.

2. The floor of the indoor competition venue must be light colored. The FIVB World Tournament is marked by white. The playing field area and barrier-free area are different colors.

2. Draw lines: 1. All boundaries are 5 cm wide. The color should be a light color that is different from the lines drawn on the ground and other items.

2. Boundary: Two side lines and two end lines delineate the competition area. Both sidelines and end lines are included in the area of the playing field.

3. The middle line connects the midpoint of the two edges under the network. The centerline of the center line divides the playing field into two equal fields that are 9 meters long and 9 meters wide.