Starting with the definition of polygon makes much easier to understand why triangle is a polygon.Definition: A polygon is a closed figure bounded by sides.Definition of triangle: Triangle is a closed figure bounded by three sides.Since triangle is also a closed figure bounded by sides therefore, triangle is a polygon.
Triangle
A triangle.
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.
yes, a triangle is a closed figure
Starting with the definition of polygon makes much easier to understand why triangle is a polygon.Definition: A polygon is a closed figure bounded by sides.Definition of triangle: Triangle is a closed figure bounded by three sides.Since triangle is also a closed figure bounded by sides therefore, triangle is a polygon.
A polygon is a closed figure bounded by sides. A triangle is a closed figure bounded by three sides. Therefore, according to the definition of polygon triangle is a polygon.
Yes, the definition of a polygon is any closed figure with straight sides.
no.
yes
If the start and end points of a figure are same, then it is called a closed figure. Examples can be a square or a triangle or a pentagon.
Triangle
A triangle.
A three sided closed plane figure (shape) is a triangle.
A polygon.
Yes by 3 lines