Consider the following steps :
1. Using Lehmann's rule, an improved position of the station point is obtained.
2. Procedure is repeated till the triangle of error is reduced to a point.
3. 'Triangle of error' is obtained.
4. The plane table is leveled over the station point.
5. Three resection lines are drawn from three well-defined station points.
The correct sequence of'' Lehmann's procedure'' for solving the ''three-point problem'' is
1
4, 5, 3, 1, 2
2
1, 2, 4, 3, 5
3
5, 3, 2, 4, 1
4
4, 1, 3, 2, 5