expanding triangle

The contracting triangular wave consists of five waves and goes against the general direction of the larger wave, and the exit from the wave is towards the D wave or the opposite of the E wave. They face a symmetrical or neutral triangle. The model channel line can be drawn by connecting a line between waves A and C and another line between waves B and D and intersects before the beginning of wave 4 and is given the symbol ET, which is the opposite of the ct-contracting triangle, meaning that it takes one form of triangles, which is the triangle Inverse symmetric