A cylinder
it has no lines of symetry
It has no lines of symetry at all.
2 lines of Symetry
A regular octogan has 8 lines of symetry, and a irregular octogan has 2 lines of symetry.
That can depend on the font you use to write them, but I guess the number 8 is in 2 planes of symetry and 3 is in one plane of symetry.
One type of symetry is rotation symetry.
A cylinder
it has no lines of symetry
circle
If it is a right circular cone, it has an infinite number of planes of symmetry. If it is an oblique circular cone, it has one plane of symmetry.
a rhombus has no lines of symetry
It has no lines of symetry at all.
2 lines of Symetry
A regular octogan has 8 lines of symetry, and a irregular octogan has 2 lines of symetry.
The given description fits that of a cylinder
A line has two fold rotational symetry.