The part of the plane enclosed by a simple closed figure is called a ___ region.
The part of the plane enclosed by a simple closed figure is called a planar region. The magnitude or measure of this planar region is called its area.
The part of the plane enclosed by a simple closed figure is called a __ region.
Question 10
Fill in the blank to make the statement true.
The amount of region enclosed by a plane closed figure is called ___ .