👉 A protractor is a device used to measure angles. It consists of a straight rod that can be rotated and adjusted to make an angle equal to any given number of degrees. Protractors are commonly found in various applications, such as carpentry, astronomy, and engineering. Protractors have two main types: the graduated protractor and the ungraduated protractor. The graduated protractor has a scale that allows for multiple measurements at once, while the ungraduated protractor only measures