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 irrigated areas: There are 16 rivers in Syria, the largest being the Euphrates with a length in Syria of 602 kilometres and an average flow rate of 1042 m 3 /sec. In general the irrigated areas totalling 1,185,679 hectares are spread all over the country where surface and ground water is available.