For surveying, there are some use of tools. Look at them, The Dividing Engine, Chains, Calculating device (non electric), leveling machine , strange and some other. These tools are very unique to use.
A protractor is used to measure angles.
a protractor
There are three angles in a triangle but to measure them you would use a protractor.
to measure a shape
Protractor...
use a protractor to measure angles
A protractor is used to measure angles.
A surveyor's compass, or a circumferentor is a device used in surveying to measure horizontal angles. It is used by directing the line of sight.
a protractor
What instrument do we use to measure the electrical and mechanical vibrations
Carpenters, Builders, Engineers, Surveyors, Architects, Mathematicians, Astronomers and in general many other people from all walks of life use angles to carry out their jobs.
There are three angles in a triangle but to measure them you would use a protractor.
to measure the angles
a protractor
To measure geometrical angles
to measure a shape
The barometer is the instrument that is used to measure the air pressure.