The answer could depend on what you mean by a decalon. The interior angle of a regular decagon is 144 degrees. If two of these met at a point they would cover 288 degrees - leaving a gap in the 360 degrees around a point. If three of them met at a point they would cover 432 degrees - causing an overlap of 72 degrees.
Yes, it can.
A regular tessellation or semi-regular tessellation or none.
A tessellation that uses more than one kind of regular polygon is called a semi-regular tessellation.
A regular tessellation is based on only one regular polygonal shape. A semi-regular tessellation is based on two or more regular polygons.
A regular tessellation uses only one regular polygon. A semi-regular tessellation is based on two or more regular polygons.
There is no such thing as a seni-regular tessellation. A semi-regular tessllation is a tessellation using two regular polygons: for example, octagons and squares together.
look it upp
It is a regular tessellation.
Yes. A regular tessellation can be created from either an equilateral triangle, a square, or a hexagon.
It can have 3, 4 or 6 sides.
one
A regular polygon has 3 to 5 or more sides and angles, they should be all equaled. A regular tessellation means a tessellation made up of congruent regular polygons.