Protractor

A protractor is a measuring instrument used in geometry and mathematics to quantify angles. It typically consists of a flat, semicircular or circular tool made of transparent or opaque material, marked with degree measurements from 0 to 180 or 0 to 360. The center of the protractor usually has a pivot point, allowing it to be placed at the vertex of an angle for accurate measurement. Users align the protractor's baseline with one side of the angle and read the degree value where the other side intersects the protractor scale to determine the angle's measurement. Protractors come in various designs, including simple plastic versions for basic measurements and more advanced models with additional features for specific applications. 

Six Sided Angle Measuring Tool

A six-sided angle measuring tool, commonly known as a hexagonal protractor, is a geometric instrument with six equal sides and six internal angles, each measuring 120 degrees. This tool is specifically designed to facilitate the measurement and drawing of angles in various applications, such as geometry and engineering. The angles are typically marked or calibrated along the edges, allowing users to accurately determine and replicate specific angular measurements during drafting or other precision tasks.