Two points A and B are 1530 m apart across a wide river. The following reciprocal levels are taken with one level. Calculate the true difference in level between A and B.
|
Level at |
Reading on A |
Reading on B |
|
A |
2.165 |
3.810 |
|
B |
0.910 |
2.355 |
1
1.545 m
2
2.260 m
3
3.255 m
4
3.085 m