An irregular pentagon.
An irregular pentagon.
Yes, it is possible to have a reflex angle in an irregular hexagon. The requirement is that the sum of the interior angles is 720 degrees. The other angles just have to be smaller to compensate.
An irregular dodecagon.
An irregular hexagon.
a 3 sided shape is a right angle triangle
The equation for the size of an interior angle of an n-sided regular polygon is (n-2)180/n. When n=7, the interior angle of a regular sided shape would be 5x180/7 or approximately 128.57. The polygon in the question has an interior right angle (90 degree angle) and thus cannot be a regular shape. A 7 sided shape is called a heptagon. Thus, the shape described in the question is an irregular heptagon.
A 5 sided pentagon can be a regular or an irregular polygon.
It could be a kite, a trapezium, a chevron or just an irregular quadrilateral with one right angle and no specific name.
Any six sided 2-dimensional shape is a hexagon; in this case, 'irregular' is placed before it to indicate it is so.
It is a 12 sided shape that can be either regular or irregular
trapezoid