Irregular pentagon.
A four-sided polygon with opposite sides parallel and all sides congruent is a square.
A four-sided polygon with all sides congruent and with four right angles is a square.
octagon
It is a regular polygon
a square
An equilateral triangle.
A regular hexagon.
Irregular pentagon.
A four-sided polygon with opposite sides parallel and all sides congruent is a square.
A parallelogram is a four sided figure. that has congruent angles and all sides are parallel
A three sided closed figure. It is one of the basic shapes of geometry.
All regular shapes have congruent sides.
A four-sided polygon with all sides congruent and with four right angles is a square.
A rectangle.
DECAGON
octagon