Why can't shapes have 2 sides?

If you define a shape as the area within a certain two-dimensional boundary, the other side would be different shape... the mirror image.

Why can't shapes have 2 sides?

Shapes cannot have only 2 sides because by definition, a shape must have at least three sides. In mathematics, a shape is defined as a two-dimensional object that has both an interior and an exterior. It is constructed by joining straight lines or curves.

To understand why shapes cannot have just two sides, we need to consider the properties of shapes. A shape is formed by connecting a series of line segments or curves. If we were to connect only two line segments, we would end up with a flat object that does not enclose any space. In other words, it would not have an interior or exterior, which are essential characteristics of shapes.

If you are encountering this question in a mathematical context, it is important to remember the definitions and properties of shapes. By referring to the established criteria, you will always find that shapes must possess at least three sides.