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.
The traditional size seems to have been around 900 square meters. In Mesopotamia and Arabia, the dunum was a larger unit, traditionally in the range of 2500 to 4000 square meters. In modern Iraq, the dunum is now standardized at 2500 square meters (about 0.6179 acre)..