Open Figures: Figures which have different initial and end points are called open figures.
If starting point and the end point of a figure are not same, then the figure is an Open Figure.
Closed Figure :- If starting point and the end point of a figure are same, then the figure is a Closed Figure.
Figures in which initial and end points coincide with each other are called closed figures.
Simple Curves: The curved lines that do not intersect themselves are called simple curved lines.
A simple curve is a curve that does not cross itself.
Simple Closed Figures :-
A connected curve that does not cross itself and ends at the same point where it begins.
Examples are circles, ellipses, and polygons.
not Simple Closed Figures