if you are talking about a geometric figure its the octagon
Two.
A cube is one of them.
An octagon need not have any sides that are vertical.
where the sides are vertical.
what is a shape that have 8 sides
contact it to vertical side of the square
Two of it's sides are vertical on the left and right, the top and bottom lines are horizontal. xxx
measure one side and BOOM there you have it length is probably the vertical sides
Do you mean vertical parallel sides? I think there is 4.
3
square
4