Correct Answer - Option 3 : horizontal and vertical angles
Explanation
Theodolite:
The theodolite is the most precise instrument designed for the measurement of horizontal and vertical angles.
Theodolite is one of the surveying instruments which has very wide applicability such as
- Laying of horizontal angles
- Locating point on the line
- Determining differences in elevation
- Setting out curves
- Establishing grades, etc.
