math protractor features an open center and accurate 6 inches ruler across the base; 24 Pack can meet the needs, and adequate to use for a long time Measure range: range of 0 to 180 degrees ...

Angles are measured in degrees with the symbol ... Draw a line from the mark to point Q. Protractors usually stop at 180°, which means reflex angles cannot be drawn by just following this ...

Measuring angles Find out how to measure angles up to 180 degrees using a protractor. Compare and order angles Learn how to compare the types of angle. Drawing angles Learn how to draw angles up ...