It is a regular 8 sided octagon.
A four sided polygon with four congruent sides is a rhombusA square.
A square is a four-sided polygon with two congruent parallel sides.
An irregular octagon.
A four-sided polygon with opposite sides parallel and all sides congruent is a square.
A quadrilateral is a4-sided figure with no congruent sides.
A kite is a four-sided polygon with two pairs of congruent adjacent sides.
It is a scalene triangle
A four-sided polygon with all sides congruent and with four right angles is a square.