Sort of. Triangle is one of the shape that may tessellate (fit tightly). But one may argue that triangle is not a square (for sure), nor a tile (yet I think it may be) to a tessellate.
Asked in Geometry
Which figure can not be used as a tessellation a square or a triangle or a pentagon or a hexagon?
All of them can be used. Any triangle or quadrilateral will tessellate. There are 15 classes of irregular convex pentagons which will tessellate. Regular hexagons and 32 classes of irregular convex hexagons will tessellate. There are also concave pentagonal and hexagonal shapes which will tessellate. ...
Asked in Math and Arithmetic, Calculus, Geometry
How can you tell if a regular shape will tessellate?
It will tessellate if its vertices divide into 360 degrees evenly. The only regular polygons that will tessellate are an equilateral triangle, a square and a regular hexagon. There are other, non-regular, polygons that will tessellate. ...