Question 10
Fill in the blank to make the statement true.
The amount of region enclosed by a plane closed figure is called ___ .
The region enclosed by a plane closed figure is called its area.
Question 35 Fill in the blank to make statement true. A plane surface of a solid enclosed by edges is called ___.
The part of the plane enclosed by a simple closed figure is called a __ region.
The amount of surface enclosed by a closed figure is called its___