What is the role of each line point in the football field, what is the function of the line on the f

Midline: Divide the playing field into two halves.

Middle Circle: A circle centered on the tee point and thought to be the radius. Rent Silver Source.

Soccer goal: wide meter, high meter.

Goal area: the line at both ends of the playing field from the inside of the goal, leading a line perpendicular to the end line to the field, one end of which is connected with the goal, and the other end point is connected to each other and parallel to the end line, and these three lines are the area within the end line.

End line: The line that marks the width of the playing field.

Sideline: A line that marks the length of the playing field.

Penalty area: The area where the two ends of the playing field are drawn on the end line from the inside of the goal post to each side of the field and perpendicular to the end line, and the other end of these two lines is connected to each other and parallel to the end line, and these three lines are surrounded by the end line.

Penalty Spot: There is a clear mark at the midpoint of the line at each end of the line 11m perpendicular to the field.

Free throw arc: It is an arc outside the penalty area with the penalty point as the center of the circle and the radius as the radius.

Corner area: The intersection point of the outer edge of the edge line and the end line is the center of the circle, and the 1 4 arc in the field with a radius of 1m, which intersects with the side line and the end line, and the area in this arc is the corner ball area.

Flagpole: A flat-topped flagpole of no less than one meter (5 feet) is erected at each corner of the field, and a small flag is tied to it. Flagpoles may also be placed at both ends of the center line and at a distance of not less than 1 meter (1 yard) beyond the sideline.

A marker line that can determine whether the whole of the ball enters the goal from the middle of the goal; A marker that can determine whether the whole ball is out of bounds from the outside of the goal; Penalty kicks.

, the goalkeeper of the penalized side must stand on the goal line with both feet and not move until the ball is kicked.

When an indirect free kick is awarded in their own penalty area, the defending player may stand on their own goal line to defend when the penalty spot is less than one metre.

In a formal football game, there are certain requirements for the playing field.

The playing field shall be rectangular in length and shall not be more than 120 metres or less than 90 metres in length and 90 metres or less than 45 metres in width (in the case of international competitions, the length of the venue shall not be more than 110 metres or less than 100 metres and the width shall not be more than 75 metres or less than 64 metres). In any case, the length must exceed the width.

On the goal line at both ends of the playing field from the goal post at the inside of the goal post, draw a long meter perpendicular line to the goal line to the field, one end is connected with the goal line, and the other end draws a connecting line parallel to the goal line, and the area within the range of these three lines and the goal line is called the goal area.

On the goal line at both ends of the playing field from the inside of the goal post, draw a long meter perpendicular to the goal line to the field, one end is connected with the goal line, and the other end is drawn a connecting line parallel to the goal line.

Make a clear mark at the midpoint of the two goal lines perpendicular to the field 11 meters each, which is called the free throw brother laughing point. Take the penalty spot as the center of the circle and the meter as the radius, and draw an arc outside the penalty area, which is called the free throw arc.

The rules state that the football field must be rectangular. The long lines on both sides of the court are called sidelines, and the short lines at both ends of the court are called end lines. The sidelines and end lines are the boundaries of the surrounding area of the football field.

The width of the prescribed line is 12 cm, and the area occupied by the line width is included in the course limits. When the whole of the ball crosses the sideline or end line on the ground or in the air, the ball goes out of bounds and the game becomes a "dead ball". When a player touches the ball off the touchline, the other team throws the throw-in from the out of bounds to restart the game.

When a player touches the ball out of the front line, the other team takes a goal kick. If a player touches the ball out of the backcourt line, the opponent takes the corner kick in the corner area.

Centerline: A line in the middle of the court that runs parallel to the end line is the centerline. It divides the football field into two halves equally, the front and the back.

The half where the team is defending the goal is called the own half, also known as the "backfield". Your side's backcourt is the opponent's frontcourt, and the opponent's frontcourt is also your side's backcourt. The role of the midline is:

1. When teeing off in the center circle, the players of both sides must stand in their own half of the court before kicking off, and must not exceed the center line. 2. In this half, there is no "offside" foul. But when an attacking player only needs to cross the halfway line, even if the player enters the frontcourt, there is an offside limit.

Goal line: Refers to a straight line between two goal posts, which is also part of the end line. It is a sign that determines whether a football has entered the goal.

The rules state that the whole ball crosses the vertical plane of the goal line and enters the goal to win a goal. A goal is not scored if there is still a part of the ball that has not crossed the 12 cm goal line, either on the ground or in the air. Sometimes the goalkeeper stands on the top of the game, or even stands in the goal with both feet to catch the ball shot by the attacker, and the referee still does not award the attacker a goal.

This is because the ball does not completely cross the goal line when the goalkeeper receives the ball, and it does not matter whether his feet are standing inside or outside the line. The goal line also serves the purpose of taking a penalty kick, and the goalkeeper of the team who is being penalized must have their feet on the goal line.