1. The user has described a set of 18 triangles arranged in 6 rows and 3 columns. 2. Each triangle has vertices labeled with uppercase letters and side/angle labels in lowercase or matching uppercase letters. 3. The description indicates relationships such as sides or angles corresponding to vertex labels, implying the triangles are equilateral or isosceles. 4. Without numeric values or specific questions (e.g., find side lengths, angles, or areas), we cannot perform algebraic or geometric calculations. 5. The description focuses on naming conventions and visual organization rather than computable problems. 6. To assist further, please provide specific questions or data regarding these triangles.