“…The idea that students' mathematical communication and connections were best instead of expository learning was reported as more efficient. On the other hand, there was a specific relationship between math communication, mathematical connection (Minarti & Wahyudin, 2019;Sari & Darhim, 2020), and mathematical disposition. Some studies in the world were attached to the topic of congruent triangles such as SAS and SSA conditions for congruent triangles (Alexander, 2018), the conceptual explanation of congruence and similarity in the real world context and conceptual knowledge (Dündar & Gündüz, 2017), the comparison of geometrical features of two congruent triangles (Leung et al, 2014), and student's understanding of the relation between the two different kinds of congruent triangles that appear in a dynamic multi-touch geometry environment (Yenny, 2016).…”