There need not be any. The Brazuca, the official ball for the 2014 World Cup in Brazil was made from six rounded cross-shapes.
there are 60 verticies
there is 7 hexagons in the design
They have 6
None.
how many vertices does 3 hexagons and 8 rectangles have all together
There cannot be a 3-d shape all of whose faces are regular hexagons.---that claim above is not true, because for example a classic soccerball consists of hexagons.
There is no standard. The 2014 World Cup in Rio, for example, used the Adidas Brazuca which has no pentagons nor hexagons.
20 hexagons
there are 60 verticies
4 hexagons; A hexagon has 6 sides, thus, if you have 4 hexagons, 4x6=24
there is 7 hexagons in the design
None. Though there can be ten if the hexagons are concave hexagons.
6
They have 6
None.
6
Well, the best soccerball in 2010 is, drumroll....... Jabulani!!!!