Pics of equilateral triangles showcase the unique properties of triangles with three equal sides. These triangles possess Euclidean properties where all angles measure 60 degrees, and their perimeter equals 3 times the side length. Additionally, equilateral triangles can be further classified into right equilateral triangles, which exhibit unique algebraic properties such as a circumradius equal to the square root of 2 multiplied by the side length. These triangles find applications in fields like origami and tessellations, illustrating their versatility in both geometric concepts and practical applications.