Circular Protractor

Circular protractors are measuring instruments used in drafting, surveying, and mapping. They are typically made of transparent plastic or metal and have a circular shape. Circular protractors are used to measure angles in degrees, typically ranging from 0 to 360 degrees. They consist of a circular disc with a center point and a series of markings or divisions along the circumference, representing the degrees of a circle.

Circular protractors are commonly used in various fields, including architecture, engineering, cartography, and geodesy. They are used to measure and draw angles accurately, aiding in the creation of precise technical drawings, maps, and plans. Circular protractors are often used in conjunction with other drafting tools, such as rulers and compasses, to create detailed and accurate diagrams.

In addition to measuring angles, circular protractors may also have additional features, such as a rotating arm or a vernier scale, which allows for more precise angle measurements. Some circular protractors may also include additional markings or scales for specific applications, such as measuring slope angles or determining bearings.

Overall, circular protractors are essential tools for professionals and students in drafting, surveying, and mapping, enabling them to accurately measure and draw angles for various purposes.