A protractor.
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!
graduated cylinder
A protractor is used to measure an angle
It is used to measure rotational displacement.
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.
protractor
A protractor.
A protractor