An irregular hexagon
A parallelogram
There is no name for such a figure. Quadrilaterals such as a trapezium or kite or even one with no equal sides can have a right angle.
pentagon
It is an undecagon
The most precise name for a shape that is both a rectangle and a rhombus is a square. A square is a quadrilateral with four equal sides and four right angles, meeting the criteria of both a rectangle (opposite sides are equal and parallel, and angles are right angles) and a rhombus (all sides are equal). Therefore, a square is the most specific term to describe a shape that is both a rectangle and a rhombus.
Not possible ! If the shape has four right-angles, at least two sides must be the same length.
A shape with more than four sides, but has four right angles. There is no name for it.
A parallelogram
There is no name for such a figure. Quadrilaterals such as a trapezium or kite or even one with no equal sides can have a right angle.
A quadrilateral is any shape with four sides; angles can be acute or obtuse. A perfect square is the only quadrilateral with only right angles.
The shape is all of the following: -- quadrilateral -- parallelogram -- rectangle -- rhombus -- square
It is impossible to have a six sided shape with right angles since the lines would never meet, therefore it would not create a shape. The most right angles you can have in a shape is four. A six sided shape is called a hexagon. There are Regular Hexagons, meaning all the sides and all the angles are equal. Any other Hexagon with unequal sides and angles and called Irregular Hexagons. Each side must be straight, and the sum of the angles equaling 720°.
octagon
pentagon
An irregular polygon.
It is an undecagon
There are infinitely many quadrangles - all of which are polygons - that have sides of different length and angles that are not right angles. There is, however, no specific name for such quadrangles because there are so many different possible shapes.