Numerical analysis
Slavery
Triangles
15 (number)
6 (number)
Equilateral triangles | Taken with Panasonic Lumix DMC-FZ50
10 (number)
Signs by shape
DIN 4844-2 warning signs
Fire extinguishers labelling
Triangular diagrams | Triangular icons
Bread-cone (hieroglyph) |
