Dara is trying to determine whether a figure is a polygon or not. Her teacher told her that figure is closed,but nothing about the shape of the figure. What else must Dara know to be sure if the figure is a polygon ?
should have a vertex and having no curves :D
To determine whether a figure is a polygon or not, Dara needs to consider two additional criteria:
1. Straight Sides: A polygon is a closed figure with straight sides. Dara should check if all the sides of the figure are straight lines. If there are any curved or non-straight sides, then the figure is not a polygon.
2. No Self-Intersections: In addition to having straight sides, a polygon should not have any self-intersections. This means that no two sides of the figure should intersect each other within the figure itself. Dara needs to examine the figure closely to ensure that there are no points where the sides cross or intersect each other.
By checking these two criteria, Dara can determine whether the figure is a polygon or not.