yes
No, a regular octagon has 8 congruent sides
No. It is the opposite sides of a regular octagon that are parallel and congruent.
YES it is.
No, they do not.
8 if it's a regular octagon
Eight
yes
8
Yes, they all are congruent and have 4 lines of symmetry
There are 6 of them.
4
an 8 sided polygon that has congruent angles, but not congruent side lengths