First, basketball:
Basketball, English, originated in Massachusetts, USA, and was founded by james naismith on June 189 1 day+February 2 1 day. It is the core event of the Olympic Games and a hand-centered physical antagonistic sport.
The standard court of basketball match is 28m long and15m wide. There should be no obstacles at least 2 meters outside the four boundaries. If it is indoor, the ceiling height should be at least 7 meters.
The court is divided into center line, frontcourt and backcourt. The radius of the center circle in the frontcourt and backcourt and the two semicircles on the penalty line are1.80m.. The rectangle under the iron ring is a restricted area, usually called the restricted area. The area outside the arch arc in the front and back court is called the 3-point shooting area, and the shooting outside the arch arc scores 3 points.
Second, football:
Football, known as "the first sport in the world", is one of the most influential single sports in the global sports world. In a standard football match, each team sends 10 players and 1 goalkeepers, and *** 1 1 people to fight, attack and defend on a rectangular grass court.
Third, volleyball:
Volleyball is one of the ball games. This stadium is rectangular with a high net in the middle. Both sides (6 players from each side) occupy one side of the court, and the players hit the ball from the net with their hands. The ball used in volleyball is made of sheepskin or artificial leather with rubber bladder, which is about the size of a football.
Fourth, the ball:
The game equipment is an elastic hollow ball, mostly made of rubber. Toys usually given to children. Divided into solid ball, rubber ball, Pu ball and PVC ball.
Extended data:
Basketball, football and volleyball can be distinguished by color, feel, weight and size.
1, color: basketball is generally black, gray and crimson. Football white is the main color, and there are also red and yellow. Volleyball is brightly colored, including white, orange and yellow. The color of the ball is colorful and varied, and there is no fixed color.
2. Handfeel: Volleyball is divided into soft volleyball and hard volleyball, but the hand feel is relatively soft, while basketball is relatively hard. Comparatively speaking, basketball is the most difficult, followed by football, volleyball and ball games.
3. Weight: the ball is the lightest, followed by volleyball, and basketball and football are relatively heavy.
As for the sport itself, football is the most exhausting sport, basketball is the most frequent physical confrontation, and volleyball is the most demanding for basic skills.
5. Size: Basketball is the biggest, followed by football, and volleyball is the smallest. Specifically, basketball is basically wrapped in six-petal arc leather, with obvious black seams and raised bubbles. Football, on the other hand, has no slots and no protrusions. It's basically wrapped in multiple pieces of leather. Volleyball is basically composed of three different colors, and it is made up of a number of rectangular colored strips which are intertwined in parallel and vertically.
Reference: Baidu Encyclopedia-Basketball
Baidu encyclopedia-football
Baidu encyclopedia-volleyball
Baidu encyclopedia-ball