Question

explain 3D and 2D shapes

Answer 1

. Any shape that can be laid flat on a piece of paper or any mathematical plane is a 2D shape. As a child, your first drawings probably used basic shapes, such as squares, triangles, and circles. Now you can find 2D shapes in the world all around you. Examples of 2D shapes include rectangles, octagons, and even hearts.
. In geometry the most common curved solids are cylinders, cones, spheres and tori (the plural for torus). Common Three-Dimensional Shapes with Curves: Cylinder. Cone. A cylinder has the same cross-section from one end to the other.

Answer 2

the plane shapes and we can say which have only 1 or 2 dimensions like length, breadth etc are called 2Dshapes.
ex- square, rectangle etc
the solid shapes which have 3 dimensions like length breadth height
these types of shapes r 3D shapes.
ex- cube, cuboid etc