A regular decagon has 10 equal sides.
A regular octagon will not tessellate but an irregular one can.
A decagon only tessalates if it is a regular decagon (all of the angles are the same) * * * * * No. Even if it is regular, on its own it cannot tessellate.
There are no right angles in a regular decagon. On a regular decagon, the angles are 144 degrees, where as right angles are ninty.
No because its angles are not factors of 360 degrees
A decagon is a 10 sided polygon
Yes. A regular tessellation can be created from either an equilateral triangle, a square, or a hexagon.