Yes.
It has both because it has 5 lines of symmetry and rotational symmetry to the order of 5
it is order 5
A pentagon has roatotional symmetry only if it is a regulat pentagaon. In that case, it has a rotational symmetry of 360/5 degrees and its multiples. That is, 72, 144, 216, and 288 degrees.
This is a little bit like asking why a square has four sides. A regular pentagon is defined in such a way as to require that it has 5-fold rotational symmetry.
No - a pentagon has 120 degree rotational symmetry.
Yes
Yes.
They have not got any rotational symmetry
5
It has both because it has 5 lines of symmetry and rotational symmetry to the order of 5
If it is a regular 5 sided pentagon then its order of rotational symmetry is 5
it is order 5
a pentagon has rotational symmetry if its a regular pentagon. if you add all 5 sides together you will get 360 degrees
A pentagon has roatotional symmetry only if it is a regulat pentagaon. In that case, it has a rotational symmetry of 360/5 degrees and its multiples. That is, 72, 144, 216, and 288 degrees.
This is a little bit like asking why a square has four sides. A regular pentagon is defined in such a way as to require that it has 5-fold rotational symmetry.
It need not have any rotational symmetry or it can have 5.