Question

understanding 3d and 2d shapes

Answer 1

The shapes which only contains Length and breadth is 2D shapes (Height excluded), whereas the figure which includes lenth, breadth, and height too, is 3D shape.

Answer 2

Hi dear
Here is your answer
2D shapes stand for 2 dimensional shapes.
3D shapes stand for 3 dimensional shapes.
2D shapes have only 2 measurements that are length and breadth.
3D shapes have 3 measurements that are length,breadth,height.
Examples for 2 dimensional figures are square, rectangle,etc
Examples for 3 dimensional figures are cube,cubiod,etc

Hope this helps you dear