It is a square
A regular shape.
It is an irregular shape
a square
scalene.
In a triangle with no sides congruent we call it scalene.
An irregular pentagon
a rhombus
A Square a square Quadrilateral I think
triangle isosceles triangle
It could be an irregular polygon with different sides or a regular polygon with equal sdes
rectangle, square, equilaterals, rhombus, kite, trapezium
A pentagon. If the sides and angles are equal it is a REGULAR pentagon.