a figure, esp. a closed plane figure, having three or more, usually straight, sides.
3
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.
Yes they are. The definition of a quadrilateral is a closed figure with four sides. A square always has four congruent sides and is a closed figure. Therefore, all squares are quadrilaterals. Trapezoids, rhombuses, and rectangles are also quadrilaterals.
a closed, flat figure is a polygon. But it is only a polygon when it is not round.
Chicken.
A polygon, by definition, is a closed figure. So a closed polygon is an undefined object.
Yes, you may think of "closed figure" as part of the definition of a quadrilateral.
the continuous line forming the boundary of a closed geometric figure
is the definition of a polygon.
A closed figure having three sides and three angles
a figure, esp. a closed plane figure, having three or more, usually straight, sides.
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.
3
Yes, the definition of a polygon is any closed figure with straight sides.
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 plane figure bounded by straight sides.Polygons is a plane figure with more than 3 straight sides and angles and are typically 5 or more.