The instrument you are looking for is a compass
A protractor can be used to measure an angle.
The instrument used to measure a angle is called a protractor!
A protractor.
A protractor is an instrument that is used when you need to measure an angle.
Some of the devices used to measure angle are Transit, Protractor and Compass.
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
A protractor.
the vertex of the angle
A sextant.
A protractor is an instrument that is used when you need to measure an angle.
Some of the devices used to measure angle are Transit, Protractor and Compass.
Not sure what an instermant is, but an appropriate instrument is a protractor.
Goniometer
Such a device is known as a protractor.