Telegraph wires spans 20 metre with a dip at the centre of 10 centimetres . assuring the wire is in the form of a circular arc . its radius is a) 45m b) 116 metre c) 208 metre d) 500.0 5 centimetre Share with your friends Share 2 Anuradha Sharma answered this Telegraph wire covers = 20 mand dip at the center = 10 cmBut here dip at center is not clear so please post the correct query. -14 View Full Answer
