It is read off the azimuth scale, possibly magnified with a so-called microscope. say, 32 degrees, ll minutes. finer degrees of reading-out are possible with some types. This type of theodolite operation is not too different in principle than taking bearings on objects with a magnetic compass, and reading off the direction in degrees.
The angle of inclination.
the measure of an angle is the degrees of an angle.
The measure of the exterior angle.
No cheating!
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Most theodolites have no "permanent" adjustments, since they are used to measure angles, both horizontal and vertical.
In surveying they were used to measure horizontal and vertical angles. They were basically a small telescope mounted on a tripod
They are surveying instruments used to measure angles.
Disc angle has main two angle : 1. Vertical angle 2. Horizontal angle
the special type of theodolite used to measure horizontal and vertical distance and horizontal angle.
A horizontal angle is an angle between lines on a horizontal plane.
this is horizontal: ---------------------------- / / this is at an angle: / / /
Slope is the angle compared with the horizontal, where the horizontal is 90° to the vertical, which can be measured with a plumb line. So, put a weight on a string, measure the angle of the string to the angle you are measuring, subtract 90° and that will give you the slope.
20 degrees is a measure of angular displacement. This cannot be converted to lateral (horizontal) displacement.
For certain angles, the answer is yes. For 30o to the horizontal (in the positive x direction), you need to measure the horizontal distance to be twice the vertical distance. For example, draw a triangle with a base length of 10cm and, at a right angle to the base, measure a height of 5cm. The angle to the horizontal (the smaller angle) will be 30o. (The opposite is true for the angle of 60o).
During Great Trigonometric Survey they used theodolites to measure Mount Everest.
The angle formed by a horizontal line is 180o.