a polygon and maybe a trapiziod
lol i am so smart
A right triangle.
An irregular septagon: the right-angle will prevent it being regular.
A 4 sided parallelogram is an irregular polygon
Yes providing that the 4 acute angles and the 5th angle of the irregular 5 sided pentagon add up to 540 degrees
A 5-sided polygon, or pentagon, can have a varying number of acute angles, depending on its specific shape. However, the sum of the interior angles of a pentagon is 540 degrees. Since an acute angle is defined as an angle less than 90 degrees, a pentagon can have 0 to 4 acute angles, but typically, it may have 1 to 3 acute angles while still maintaining the overall angle sum.
An irregular hexagon.
An irregular octagon.
That depends on whether or not if it's a regular polygon or an irregular polygon but in general all exterior angles for any polygon add up to 360 degrees.
An octagon is a two-dimensional polygon with eight sides which can be regular or irregular
I would call it an irregular octagon, or an irregular 8-sided polygon.
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.