Question

What characteristics of two and three dimensional devices did you note? 

Answer 1

1. A two-dimensional device has length and width. The product of length and width gives the area of the object. e.g. Map is a two - dimensional device.
2. A three-dimensional object has length, width, and height (thickness). The product of these three gives the volume of the object. e.g. Globe is a three-dimensional device.