It is used to measure rotational displacement.
A protractor is used to measure an angle.
A protractor can be used to measure an angle.
The instrument used to measure a angle is called a protractor!
A protractor is used to measure an angle
the unit used to measure angle is degree. It is also measured in radians.
the vertex of the angle
A protractor is used to measure angles.
A protractor is used to measure angles.When surveying a theodolite is used.There are a number of tools on the market that perform angle measurement.
A protractor.
A protractor.
protractor
A protractor