বাংলদেশের জাতীয় পতাকায় মোট কতগুলো রঙের ব্যাবহার করা হয়েছে ?
The national flag of Bangladesh ( ) was adopted officially on 17 January 1972. It consists of a red disc on top of a green field, offset slightly toward the hoist so that it appears centred when the flag is flying. The red disc represents the sun rising over Bengal, and also the blood of those who died for the independence of Bangladesh. The green field stands for the lushness of the land of Bangladesh. The flag is similar to the Japanese flag, with the difference being the Japanese flag depicting the red disc centered on a white field.
a red disc on top of a green field