Who invented similar triangles?

Answer 1

The concept of similar triangles dates back to ancient Greek mathematicians, particularly Euclid, who is often credited with formalizing the properties of similar triangles in his work "Elements." While Euclid did not "invent" similar triangles in the modern sense, he provided rigorous definitions and theorems regarding their properties. The principles of similarity were likely known and utilized by earlier mathematicians, but Euclid's contributions helped to systematize this knowledge.