Scalenes are a type of triangle characterized by having all three sides of different lengths. This means that none of the angles in a scalene triangle are equal, making it distinct from other triangle types like isosceles or equilateral triangles. The lack of symmetry in scalenes can make them appear irregular, but they still follow the basic properties of triangles, such as the sum of their interior angles being 180 degrees. In geometry, scalene triangles can be used in various applications, including architecture and engineering. They help in understanding concepts like area and perimeter, which are essential for designing structures. Additionally, scalene triangles can be found in nature and art, showcasing their versatility in different fields.