10 axes of symmetry
A decagon need not have any lines of symmetry. It can also have 1 or 10 lines of symmetry.
A decagon need not have any lines of symmetry. It can have 10.
There need not be any.
Ten.
10 axes of symmetry
A decagon need not have any lines of symmetry. It can also have 1 or 10 lines of symmetry.
A decagon need not have any lines of symmetry. It can have 10.
10 lines of symmetry
7
A regular decagon has rotational symmetry = 10.For irregular decagons, it could be less (either 2 or none.)
10
There need not be any.
Ten.
6
A dodecagon need not have any lines of symmetry. It can have a maximum of 12.
A decagon has 10 sides, so it also has 10 angles. Each angle of a decagon is 36 degrees (360 degrees divided by 10). Therefore, a decagon has 10 angles of rotation symmetry.