Question

what is planar region?? ​

Answer 1

${\huge{\sf{\green{\underline{\underline{Solution}}}}}}$

It is the region corresponding to a simple closed figure is the part of the plane enclosed within the boundary of the figure.

Answer 2

Answer:

A graph is said to be planar if it can be drawn in a plane so that no edge cross. ... A region is defined to be an area of the plane that is bounded by edges and cannot be further subdivided. A planar graph divides the plans into one or more regions. One of these regions will be infinite.