Furthermore here is an excerpt from the book 'TA of the Financial Markets' by John Murphy ( pg . 138):
"While the most often appears in an uptrend and is considered a continuation pattern, it sometimes appears as a bottoming pattern. It is not unusual toward the end of a downtrend to see an develop. However, even in this situation, the interpretation of the pattern is . The breaking of the upper line signals completion of the base and is considered a signal. Both the ascending and descending triangles are sometimes also referred to as right angle triangles"