Two-dimensional shapes have two properties: length and height. Three-dimensional shapes, on the other hand, have three properties: length, width, and depth or height. A reflection of an object is an example of a two-dimensional shape, while a cone, sphere, or other three-dimensional shape is an example of a three-dimensional figure. Students can learn more about 3D shapes by doing questions from RS Aggarwal Solutions Class 8 Maths Chapter 19. Using the RS Aggarwal reference book to practice will help you because it will force you to try out your ideas and figure out where you’re wrong and where you need to improve.