The official ball for the 1986 World Cup was the adidas Azteca.
The official ball for the 1978 World Cup was the adidas Tango.
Rules of the Game: Within each penalty area, a penalty mark is made 12 yards (11 m) from the midpoint between the goalposts and equidistant to them. An arc of a circle with a radius of 10 yards (9.15 m) from each penalty mark is drawn outside the penalty
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The African Cup of Nations, the main international football competition in Africa, was first held in 1957.