A trapezoid/trapezium is a quadrilateral (4 sided shape) with exactly one pair of parallel sides.It is a quadrilateral (a closed plane shape with four linear sides) that has at least one pair of parallel lines for sides
Tetrahedron has three sides and a base all triangular.
Polygon is a two dimensional figure that has three or more sides. Polygons are classified by their number of sides. Three sided is a triangle. A four sided figure is a quadrilateral. A five sided figure is a pentagon and so forth. The number of angles it has is equal to the number of sides.A polygon usaally has 5sides
i think its rectangle or swuare those 2 you choose
A polygon is a closed shape made up of only straight lines and angles. When you add another side, you must also add another angle to close the shape.To demonstrate this, try to draw a shape with closed edges and only straight lines with a different number of angles. Its impossible to create
A three sided closed plane figure (shape) is a triangle.
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 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.
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.
Quadrilateral
polygon - D.A.
depends on whether or not they form a closed figure. a polygon is a closed figure consisting of at least three sides
A triangle is a geometric figure that is made of three line segments. It is a closed figure and has three angles.