A closed figure made of line segments each of which intersects with exactly two other line segments.
A quadrilateral having all sides equal in length and forming right angles.
A 3-sided polygon (sum of internal angles = 180°)
A 4-sided polygon with all right angles.
4-sided polygon with two pairs of parallel sides.
5-sided polygon (the graphic shows a regular hexagon with "regular" meaning each of the sides are equal in length)