2d shapes and 3d shapes

Today i am learning how to do 2D shapes and 3D shapes i'm trying my best to learn how to do 2D AND 3D shapes. 2d shapes are that what are flat and this is what 3d shapes are fat. this picture is showing you what 2d shapes mean and it is showing you what are 3d shapes. 2d shapes and 3d shapes are putting the right thing with the death means shapes the are different to  2d shapes and 3d shapes.