a regular pentagon
The name of the shape is a quadrilateral.
It is usually a regular polygon that has equal sides.
Square. By definition, its sides must all be equal.
It is either a square or an equilateral triangle.
An irregular shape like the delta or triangle( not equilateral) oblong (rectangle).....
The name of the shape is a quadrilateral.
It is usually a regular polygon that has equal sides.
A rhombus.
rhombus and parallelogram
Square. By definition, its sides must all be equal.
irregular
Pentagon
Square
There is no specific name for such a quadrilateral.
an equilateral triangle.
In a 3D world with 6 sides it is a cube.
It is a quadrilateral with no special name.