3
any shape that is closed and has no round sides, triangles, squares, pentagons, hexagons, heptagons, octagons, nonagons...
Anything without four sides, since a quadrilateral is a polygon with all four sides. An example of a shape not a quadrilateral would be a triangle.
A shape that has all sides connected. Examples are squares, circles, ovals, octagons, etc.
There are pentagons, hexagons, heptagons, octagons, et cetera.
There are regular octagons, and irregular octagons.
You can find the perimeter of any geometric shape knowing the length of one side if all sides are equal. For example: squares, hexagons, octagons and so on...
8 octagons
Octagons?
Octagons
A shape is an object with a specific number of sides. Some examples of shapes include circles, squares, triangles, pentagons, and hexagons.
Assuming regular octagons, squares.
The 3D shape with 2 octagons and 8 squares is called a truncated square antiprism. It is a type of prism where the top and bottom faces are octagons, and the side faces are squares. This shape has a total of 10 faces, including 2 octagons and 8 squares.