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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.
an open figure is a figure with its ends NOT connected
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 polygon that is not completely closed.
The Lines Are Open was created in 1985.
an open plan figure is a figure whose end point are not connected
It depends when the windows are open no, but when they are not, yes.
closed figure