Quadrilaterals are 4 sided polygons
How about a decagon which is a ten sided polygon
A regular polygon
It is not a polygon
It is not a polygon, because a polygon is a closed figure.
No.
by every letter on the vertex or side you can put a letter and that will name the polygon.
The block letter "H" is a polygon known as a concave polygon. A concave polygon is a polygon with at least one interior angle greater than 180 degrees, causing the polygon to have at least one "cave" or indentation in its shape. In the case of the block letter "H," the interior angle at the center where the two vertical and one horizontal lines meet is greater than 180 degrees, making it a concave polygon.
How about a nonagon which is a 9 sided polygon.
polygon pentagon parallellagram pyramid
polygon
Yes, there is. For example, a box-letter arrow is a polygon. A stick-letter arrow is not, because it is not in 1 piece