A variant of the flag of Palestine used in different periods of its history. In this version, the height of the triangle equals half it's base, which also equals 1/4 the length of the flag. This version was superseded by law in 2006 with the version that has the height of the triangle 1/3 the length of the flag. This version can still be seen used in various places.
Own work. Based on Law No. 22 for the year 2005 on the Sanctity of the Palestinian Flag
Original: Unknown Vector:  Orionist