No it is not.
false
Regular Hexagon, Square, and Equilateral Triangle. (Apex)
An octagon can be used to create a tessellation, but an octagon cannot tessellate on its own.
Well, darling, an 81-sided polygon is called an "octacontaenneagon." It's like a regular polygon, but with 81 sides instead of your typical 3 or 4. So, if you ever find yourself needing to impress someone with your knowledge of shapes, just drop that little gem into the conversation.
No it is not.
false
yes
Most regular polygons will not - by themselves. In fact, of the regular polygons, only a triangle, square and hexagon will. No other regular polygon will create a regular tessellation.
Yes
false
Assuming that the question refers to a regular octagon (not a regualr otagon), the answer is no.
Most regular polygons will not - by themselves. In fact, of the regular polygons, only a triangle, square and hexagon will. No other regular polygon will create a regular tessellation. However, for polygons with any number of sides, there are irregular versions that can tessellate.
No - because they would leave a small, square-shaped space between each tile.
Regular Hexagon, Square, and Equilateral Triangle. (Apex)
regular hexagon, square, equilateral triangle...apex
regular hexagon