Class 10 case study Chapter 11 Area related to circle 2

Class 10 Chapter 11(Area related to circle) Question:-The south central zone of Indian Railways has commissioned the longest electrified railway tunnel in the country. According to local media reports, the construction of the 6.6 km long tunnel took 43 months to complete. The electrified railway tunnel is situated between Chelopalli and Rapuru station as a … Read more