The name for a region of a closed figure is the Area.
the area is that 2 dimensional space inside of the closed figure. normally specified as square centimeters or square inches
Area
area
Its area.
area
closed figure
yes, a triangle is a closed figure
Yes. A simple closed figure is counted as a polygon for a polygon is closed.
That's called a closed figure.That's called a closed figure.That's called a closed figure.That's called a closed figure.
A pentagon. A closed figure means that all the lines of the figure are connected.
The distance round a closed figure is the perimeter.