Coplanar lines. The lines which lie on the same plane are said to be coplanar lines. In the above figure, we can see that the lines, l, m and n lie on the same plane, hence they are coplanar. Coplanar line segments.
Occupying an area of more than 190 km 2 (73 sq mi), Aleppo is one of the fastest growing cities in the Middle East. According to the new major plan of the city adopted in 2001, it is envisaged to increase the total area of Aleppo up to 420 km 2 (160 sq mi) by the end of 2015.
Aleppo: Who controls what. Aleppo, once Syria's largest city, is an important battleground in the war with at least 250,000 besieged in the east. Aleppo is one of the key battlegrounds in the Syrian war. Since that conflict started in 2011, the northern city has been the stage of hard-fought battles. At least four major factions keep fighting for control of the strategically important city, which has seen some of the worst violence of the conflict.