linear measurement

A line between stations P and Q laid on a slope of 1 in 5 was measured as 350 m using a 50 m tape. The tape is known to be short by 0.1 m. The corrected horizontal length (in m) of...

The length of a baseline measured on ground at an elevation of 300m above mean sea level is 2250 m. The required correction to reduce to sea level length. (given the radius of eart...