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.
Equilateral triangle.
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
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.