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an irregular figure is when it is open or have curved lines.
Straight. No curved lines. And no open spaces the line has to be whole.
All 2-dimensional shapes. They may be closed or open, concave or convex, made of straight lines or curved ones, the lines may or may not cross each other.
A regular pentagon has straight sides and is closed so its a polygon. Any shape with straight sides and is closed is a polygon. Example O (circle) has curved lines so its not a polygon L (square) is open therefore it is not a polygon.
Keep going straight, then there is a little plate with four lines, get all the lines to match up horizontally then jump on them and then you'll find a new room with a blocked passage. The the cubes to line up correctly with the figure on the wall, and the passage will open.
It depends on which kind of Polygon your talking about. Like a square is 360 degrees. As long as a shape has no curved or open lines, it's a polygon.
an open figure is a figure with its ends NOT connected
an open figure is a polygon that is not completely closed.
an open plan figure is a figure whose end point are not connected
The Lines Are Open was created in 1985.
It depends when the windows are open no, but when they are not, yes.
closed figure