A soccer ball consists of several polygonal pieces of skin

Updated on technology 2024-05-24
8 answers
  1. Anonymous users2024-02-11

    On the evening of December 9, 2005, the 2006 German World Cup match ball "Team Star" was officially unveiled. It is reported that the "Team Star" will be sold for $130.

    Team Stars" (+teamgeist?), implying the important spirit of winning the World Cup: the strength of the team.

    She used a new special-shaped piece and seamless pressing technology to reduce the ball surface to 14 pieces for the first time, eliminating the irregular unevenness of the ball surface to the greatest extent, so that the ball presents a perfect arc, thus effectively improving the accuracy of the ball's operation. The "+ Team Star" is mainly composed of black, white and gold, with black and white being the traditional colors of the host German national football team, and gold representing the World Cup winner's trophy.

    The "Team Star" is different from any other football in history – the spherical pieces range from 32 (12 pentagonal and 20 hexagonal) to 14, and the reduction of the pieces makes the ball more perfect for the ball. In the world of sporting goods, adidas has always represented a special status symbol, and this symbol has been called by some as the three lines of victory . Since its founding in 1948, adidas has helped countless athletes achieve great results.

    Therefore, adidas can also be said to be the best example of the trust and respect of all people.

    Resources.

  2. Anonymous users2024-02-10

    Originally, it was 32 pieces, and this year the team star is 14 pieces.

  3. Anonymous users2024-02-09

    Categories: Sports Sport >> Football World Cup.

    Problem description: The master helped, the little brother thanked me first.

    Analysis: In addition, the solution must use a combination of hexagons and pentagons?

    First of all, let's talk about using triangles, because triangles have too few sides, it is difficult to make a circle with triangles, and it is difficult to fill all the space (unless you have triangles of different shapes to fill the space, but this will affect the appearance); And the shape of the ball will be very strange because it will be a three-pointed octagonal. In addition, there are a lot of numbers to make a football with a triangle, so it is not calculated!

    In addition, let's talk about the quadrilateral, in fact, the chaos is very simple, because no matter how you connect, the resulting ball will always be more like a cube than a sphere, and the cube ball is believed to be difficult to kick!

    As for the combination of hexagons and pentagons, a pentagonal rock shape is surrounded by five hexagons on just five sides, and these five hexagons are perfectly joined together, without gaps, around the middle pentagon; In this way, the repeated connections just come up with another sphere. Not only does it look good (it looks like a circle), but it also solves the problem of gaps, and it is also convenient for people to kick the wave, which can be described as one can be three birds!

    This type of football originated in 1970 and was created by adidas, which was the first time FIFA asked Adidas to provide the official ball for the World Cup in Mexico.

  4. Anonymous users2024-02-08

    Categories: Sports Sports >> Football.

    Analysis: A soccer ball has 32 pieces of skin, generally black and white, 12 pentagons, 20 hexagons.

    The black ones are regular pentagons, and the white ones are regular hexagons.

    Let the black skin x block, then the white skin 32 x block, the number of vertices v, the number of edges e, the column equation:

    5x+(32-x)*6=e*2 (two skins for each edge), 5x+(32-x)*6=v*3 (for each vertex, 3 skins), v+32-e=2 (Euler's formula).

    The solution is x=12

    So the black skin pentagonal is 12 pieces, and the white skin hexagon is 20 pieces.

  5. Anonymous users2024-02-07

    A football has 32 pieces of skin, generally black and white, 12 pieces of pentagons, 20 pieces of hexagons Black is a regular pentagon, white is a regular hexagon, set black skin x block, then only open the white skin 32 x blocks, vertex number v, edge number e, column equation: 5x+(32-x)*6=e*2 (each edge, two pieces of skin, socks for inspection) 5x+(32-x)*6=v*3 (3 pieces of each vertex of the mountain eggplant.)

  6. Anonymous users2024-02-06

    1. The traditional standard football consists of 32 pieces of skin, which are divided into black and white, of which 12 pieces are black for the pentagonal shape and 20 pieces are white for the hexagon.

    2. The ball used in football is made of cowhide and rubber, and the FIFA approved qualification standard: between centimeters and centimeters; FIFA approved eligibility criteria: The weight of the ball is between 420 445 grams.

    3. Football, known as "the world's first sport", is the most influential sport in the global sports world. The standard 11-a-side football game consists of 10 players from each team and a hail locust and a goalkeeper, a total of 22 players, who play against each other on a rectangular grass pitch. During the game, try to shoot the football into the goal of the opposite side, and you can get one point for each goal you score, and when the game is over, the team with the most points wins.

    If the score is tied within the time limit of the match, it depends on the rules of the match, and the score may be scored in the form of a draw, rematch after extra time or a penalty kick (12 yards).

  7. Anonymous users2024-02-05

    Categories: Sports Sports >> Football.

    Analysis: A football has 32 pieces of skin, generally black and white, 12 pieces of pentagon, 20 pieces of hexagon, black is a regular pentagon, and white is a regular hexagon.

    Let the black skin x block, then the white skin 32 x block, the number of vertices v, the number of edges e, the column equation:

    5x+(32-x)*6=e*2 (two skins for each edge), 5x+(32-x)*6=v*3 (for each vertex, 3 skins), v+32-e=2 (Euler's formula).

    The solution is x=12

    So the black skin pentagonal is 12 pieces, and the white skin hexagon is 20 pieces.

  8. Anonymous users2024-02-04

    Black is a pentagon, white is a hexagon, let black be x, white is y, there are a total of 32 footballs, i.e.: x+y=32 Since there are five hexagons around each pentagon, 5x is counted as the number of blocks of the hexagon, and there are duplicates of each hexagon connected to three pentagons, i.e. each hexagon is counted three times, so 5x=3y is solved x=12, y=20

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