Almost all the flags of the world are rectangular | Did you know that

Did you know that almost all the flags of the world are rectangular (usually in the ratio of 3a2 or 5A3) with different colors or shapes. Libya is the only country that has a one color (green) flag. The flag of Switzerland is square and the flag of Nepal has 2 triangles.

Libyan flag
Libyan flag
Switzerland flag
Switzerland flag
Flag of Nepal
Flag of Nepal