2-dimensional shapes are also called _____.


Plane figures

Step by Step Explanation:
  1. We know that a 2-dimensional geometrical shape has a length as well as a breadth.
  2. We know that if a geometrical shape has height as its third dimension besides the length and breadth, it is considered to be a 3-dimensional figure.
  3. However, a plane figure is bounded by two flat boundaries along its length as well as breadth.
    That means, it covers only two dimensions. Therefore, it is considered as a 2-dimensional figure.

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