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origin baseline scales
A protractor has two scales to measure angles in both degrees and radians. The outer scale typically measures angles from 0° to 180°, while the inner scale can also represent angles from 0° to 180°, but it allows for easier reading from both sides of the protractor. This dual functionality enables users to measure angles more conveniently, depending on their specific needs.
Protractor
A protractor measures the angle between two lines meeting at a point called a vertex. The angle measurement is in degrees.
the filipino term of protractor