It need not have any. Like tennis balls, they can be made up of non-polygonal shapes.
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Ah, what a lovely question! With 12 pentagons on a soccer ball, you'll find 90 seams holding them all together. Each pentagon is surrounded by five hexagons, and each edge of a pentagon is shared with another pentagon, creating those beautiful seams that give the ball its shape and structure. Just imagine all those seams coming together to create something wonderful, like brushstrokes on a canvas!
This depends on the type of prism. If the shapes on the ends are pentagons, the prism has 6 planes of symmetry. If they are hexagons, it has 13 planes of symmetry. It has the same number of planes of symmetry as the shapes on the end have lines of symmetry, plus 1.
The answer depends on how many lines are shared by pentagons. There are at most 160 line segments.
If you are thinking of a solid with pentagonal faces, a dodecahedron, there are twelve pentagons
15