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