How to distinguish the size of football

How many kinds of football are there? What are the respective rules
After the spread of English football to other countries, it has been developing and changing. Many countries have created their own forms of football. Such as the United States, Canada, Australia and other countries, football venues, equipment, rules, clothing and even the number of playersWhat about football
It takes 80 minutes to play an English football game. There are only two halves, with a 10 minute break between them. Each team has 15 players, including 8 forwards and 7 defenders. Touchdown scoring is the highest scoring method in rugby: when the offensive team members break into the defensive division, they will touch the ground with the ball, " Arrival array " 5 pointsHow big is rugby number five
So it's actually the same size. If No. 5 football is mentioned, it means that it is the standard ball size for international football games, so there is no difference between the size of British football and American football. In addition, there are some No. 6 and No. 9 balls, which are balls of different sizes used by players of different agesAsk a few football questions
The application of position attack and defense and offensive tactics is emphasized in football matches. The team with more points at the end of the game wins. Each team has 11 offensive players, 11 defensive players and several secret service players. In the game, one side is the attacking side, and the other side is the aggressive group; The other side is the defender, in the defensive group. Both sides are offensive and defensive to each otherWhat is the size and weight of football
Specification of rugby: rugby is an oval watch case sewn with four pieces of corresponding materials. Its long axis is 280mm-300mm, its long axis circumference is 760mm-790mm, its short axis circumference is 580mm-620mm, and its weight is 400g-440gDoes American football have different sizes
Of course, the NFL standard ball is No. 9 ball, the largest. No. 3 ball is usually played for children under the age of 10. The rest depends on how big your hands are
How big are Rugby numbers 6 and 9, such as length and width
No. 9 is a junior football ball, and No. 9 is a standard adult football ball. Rugby is one of the ball games. It is an antagonistic movement on a rectangular field, through collective cooperation, scoring by shooting or touching the ground with the ball. Rugby originated in 1823 in rugby, England, in 1871Introduction to rugby and rules of the game
The size of the football field is close to that of the football field, with 11 players from each side. In the game, you can kick and hold, which is rough and fierce. Therefore, all the players wear helmets or protective equipment. However, after careful textual research, later historians found that this story is purely fictitious, but the power of legend is powerful, and it has been deeply rooted in the hearts of the peopleThe difference between Rugby number 9 and number 7
No. 9 is the size of NFL ball. It is also used in universities. No. 7 is generally used by junior middle school students