square
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
It is an upper case character of the Roman alphabet consisting of three straight lines.
A plane figure with three straight sides and three angles.
Quadrilateral
Three straight sides Closed figure two dimensional three angles
a figure, esp. a closed plane figure, having three or more, usually straight, sides.
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
Polygon
A polygon.
2 dimensional (plane) figures can have three or more straight edges as sides. 3 dimensional (solid) figures can have four or more plane sides (faces). They can have fewer sides if the sides are not straight.
A polygon. It has to have straight sides, so that it can be divided into triangles.
A quadrilateral is a closed plane figure with four straight sides.
A polygon is any closed plane figure bounded by three or more straight sides.
A Polygon is a figure with at least three straight sides and angles, and typically five or more.