Polygon
plane figure
a closed plane figure with 3 or more line segments is a polygon
The distance around a closed plane figure is called the perimeter. The perimeter of a figure can be calculated by adding together the lengths of each side.
If they are straight sides, then a polygon. Otherwise, simply "a closed plane figure with 3 or more sides".
Any closed figure that is not entirely composed of straight sides, such as an ellipse or a circle.
A nonagon. It also has nine sides.
Cjic
a closed plane figure with all sides congruent and all all angles
If you mean EQUAL sides and angles, than an equilateral triangle.
plane figure
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.
That's a rhombus ... a special type of parallelogram.
That's a rhombus ... a special type of parallelogram.
It is a polygon that is a closed plane figure with 3 or more straight lines.
A three sided closed plane figure (shape) is a triangle.
A square is a closed plane figure bounded by 4 straight lines which are of equal length and which meet one another at right angles. Anything else is non-square.
No. A plane extends to the ends of the universe.