Yes, a square by definition has four sides that are all equal in length and four right angles. These sides are perpendicular to each other, meaning they form 90-degree angles at the corners. Therefore, a square does have vertical sides as they stand perpendicular to the ground or any horizontal plane.
square
If it has no sides then it cannot be a square.
A cube is one of them.
Yes, a square has two pairs of parallel sides.
12 Sides.... A 3d Square is a cube!!