Definition, Meaning & Synonyms
protractor
noun
prəˈtræktər

Definition
A protractor is a tool used to measure angles in degrees.

Examples
- The protractor helped him measure the angles of the triangle accurately.
- In geometry class, we learned to use a protractor to create different angles.
- To construct a perfect circle, one may also use a protractor along with a compass.

Meaning
It allows users to determine the size of an angle formed by two lines originating from a common point.

Synonyms
- angle measurer
- angle finder
- angle gauge