There are typically three different ways to read angles on a steel square:
1. Degree scale: Steel squares often have a degree scale on one of the arms, allowing you to directly read the angle in degrees. This scale is useful for precise measurements and accurate angle readings.
2. Protractor scale: Some steel squares feature a protractor scale, which allows you to measure angles more precisely. By aligning the square's edge with the angle you want to measure, you can read the angle directly from the protractor scale.
3. Vernier scale: Certain steel squares may also have a vernier scale, which provides a more detailed measurement of angles. By aligning the square's edge with the angle you want to measure, you can read the angle from the vernier scale and get a more precise reading than with a regular degree scale.
