[size=200]In Congruency Test,[br][br]S means corresponding sides of triangles are [color=#ff0000][b][u]equal/same in length[/u][/b][/color].[br][br]In Similarity Test,[br][br]S means [color=#ff0000][b][u]ratio [/u][/b][/color]of corresponding sides of triangle[color=#ff0000][b][u] are equal/same.[/u][/b][/color][/size]