What is the difference between two-dimensional shapes and three-dimensional shapes?

Answer 1

The difference is that two-dimensional shapes have a length and a width while three-dimensional shapes have a length, width, and depth. While some examples of two-dimensional shapes are circle, rectangle, and triangle, example of three-dimensional figures are a sphere, cuboid, and a pyramid.

Answer 2

Two dimensional shape has length and breadth

Three dimensional shape has length, breadth and depth

Answer 3

2 dimensional shapes use the x and y planes where as 3 dimensional shapes use x, y and z planes.