Which country's flag has nine white triangles separating white and maroon fields? Qatar.
Qatar's flag is divided into a broad white band at the hoist and a maroon field at the fly, separated by a serrated edge of nine white triangular points. The design is unusually long and narrow, with an official proportion of 11:28, making it the only national flag whose length is more than twice its height.
The nine points are commonly explained as representing Qatar's position as the ninth emirate to sign a treaty with Britain after the other Trucial States and Bahrain. White is associated with peace, while the distinctive maroon colour reflects Qatar's history and its traditional purple-red dye production.
Qatar adopted the modern flag on 9 July 1971, shortly before independence from the United Kingdom. Earlier versions changed in colour, proportions and decoration; some included diamonds and Arabic lettering. The most frequent confusion is with Bahrain's flag, which also uses a white serrated band. Bahrain has fewer points, a red rather than maroon field, and a different proportion.