# Similar Polyfetts Tiling a Square

A *polyfett* or *polifetto* is a plane figure
formed by joining equal isosceles right triangles on the square grid
along equal edges and at corners.
It is a generalization of a polyabolo.
A few polyfetts can form a square
by joining variously sized copies of themselves.
Here I show some examples.

The tilings shown use as few tiles as I know how,
and are not necessarily unique under this condition.
If you find a tiling with fewer tiles, please write.

Only polyfetts that are not polyaboloes are shown here.
See also Similar Polyaboloes Tiling
a Square.

### 4 Tiles

### 6 Tiles

### 8 Tiles

### 9 Tiles

### 12 Tiles

### 14 Tiles

### 16 Tiles

### 18 Tiles

### 20 Tiles

### 24 Tiles

### 26 Tiles

### 36 Tiles

### 84 Tiles

### 88 Tiles

### 336 Tiles

### Unsolved

Last revised 2021-01-28.

Back to Polyform Tiling
<
Polyform Curiosities

Col. George Sicherman
[ HOME
| MAIL
]