8 congruent sides and angles (or lines ) ....'octo' means 8
square. hexagon nonagon octagon etc.
No, a regular octagon has 8 congruent sides
octagon
if it has all congruent sides, then it is regular
It is a regular octagon.
No. It is the opposite sides of a regular octagon that are parallel and congruent.
yes
YES it is.
No, they do not.
8 if it's a regular octagon
Yes:As the shape is regular all sides are equal in length (and congruent).An octagon has 8 sides. As this is an even number of sides, the opposite sides are parallel.