Question

about 3D shapes
and 2D shapes​

Answer 1

A shape or a solid that has three dimensions is called a 3D shape. 3D shapes have faces, edges, and vertices. They have a surface area that includes the area of all their faces. The space occupied by these shapes gives their volume. Some examples of 3D shapes are cube, cuboid, cone, cylinder. We can see many real-world objects around us that resemble a 3D shape. For example, a book, a birthday hat, a coke tin are some real-life examples of 3D shapes.

2D shapes are shapes with two dimensions, such as width and height. An example of a 2D shape is a rectangle or a circle. 2D shapes are flat and cannot be physically held, because they have no depth; a 2D shape is completely flat.