Octagon.
Not at all. One way to make it would be to cut the corners off a square.
no
Square = 360 Pentagon = 540 Octagon = 1080
An octagon is a polygon. The name refers to its shape, not its size. It can have an area of less than a billionth of a square foot to more than a billion square feet.
Start with one octagon.Place an octagon along every other side of the first octagon. This creates square gaps which can be filled using the squares. At this stage the general pattern should be evident.
To turn a 9x9 square into an octagon you can cut corners off the square. It will not be a regular octagon though.
No, but an octagon and a square can tessellate.
You cannot use a regular octagon on it's own to make a tiling pattern without any gaps. However a regular Octagon and a square can be used together to make a tessellation. Many people think that regular octagons tesselate on their own because they do not appreciate the need for no gaps.
Octagon.
As an octagon has 8 angles, a square has 4 as has a rectangle
Not at all. One way to make it would be to cut the corners off a square.
Yes, they will.
no
yes
Square = 360 Pentagon = 540 Octagon = 1080
Octagons don't have square roots.