The concept of angles didn't have a single "discoverer," but rather evolved through the contributions of several mathematicians.
While we can't credit one individual with "discovering" angles, we can attribute different conceptualizations and uses of angles to various figures throughout history. According to information available:
- Eudemus of Rhodes: Used the first concept of the angle as quality. He considered an angle as a deviation from a straight line.
- Carpus of Antioch: Used the second concept of the angle as quantity. He considered it as the interval or space between intersecting lines.
- Euclid: Adopted the third concept of the angle as a relationship.
Therefore, the concept and understanding of angles developed over time with contributions from mathematicians like Eudemus, Carpus, and Euclid.
