Protractor
A semicircular 6-inch protractor made of clear transparent material with die-stamped graduations for measuring angles in educational and office settings.
Estimated value as of 2026 · Source: Office Depot - Semicircular 6" Protractor, Clear (Item #713585)
Fun Fact
Protractors have been used for centuries to measure angles, with the semicircular design (180 degrees) being the most common type for everyday use, though full-circle protractors (360 degrees) also exist for specialized applications.
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