Question

Do a 3D shape needs to have three line joining at vertex if not then please give example also

Answer 1

Answer:

3D shapes

In our day to day life, we see several objects like books, ball, ice-cream cone etc, around us which have different shapes. One thing common to most of these objects is that they all have some length, breadth and height or depth. Therefore they all occupy space and have three dimensions.

Examples of 3D shapes and figures

We can say that the figures which we draw on paper and have length, breadth and height are called 3-d figures. Hence a 3D shape has three dimensions. The D in 3D stands for dimensional. In a world with three dimensions, you can travel forward, backward, right, left, and even up and down.