The multiplying constant in the distance formula by tacheometry is given by
1
distance between the stadia wires divided by the focal length of the objective lens
2
focal length of the objective lens multiplied by the distance between the stadia wires
3
stadia intercept divided by the focal length of the objective lens
4
stadia intercept multiplied by the focal length of the objective lens
5
focal length of the objective lens divided by the distance between the stadia wires