The length of road per 100 sq km of area is known as density of roads. Advantages of roadways over railways are: (i) Construction cost of roads is much lower than railway lines. (ii) Roads can be constructed...
Circles: 1. Minor_arc and #Major_arc: If P and Q are points on the circumference (periphery) of circle, and then smaller arc is termed as ‘minor arc’ and larger one as ‘major arc’. 2....