Triangle
A polygon.
It is a polygon
A triangle cannot have two parallel sides. In order for a figure to be a triangle, it must be a closed figure with three sides and three angles. If two of the sides were parallel, there is no way the figure could be closed by only one other line.
polygon - D.A.
Triangle
A polygon.
A simple closed figure formed by three or more segments is called a polygon. Regardless of how many sides a polygon has, all polygons will have as many vertices as it has sides.
polygon
square
A three sided closed plane figure (shape) is a triangle.
yes it does. a polygon has to be a closed figure with a least three sides and it can only have straight sides--no curves
It is a polygon
A closed figure having three sides and three angles
A triangle cannot have two parallel sides. In order for a figure to be a triangle, it must be a closed figure with three sides and three angles. If two of the sides were parallel, there is no way the figure could be closed by only one other line.
Quadrilateral
polygon - D.A.