# Triangle

CT = Contracting Triangle, ET = Expanding Triangle
A Triangle is a common 5 Wave pattern labeled A-B-C-D-E that moves counter-trend and is corrective in nature. Triangles move within two channel lines drawn from Waves A to C, and from Waves B to D. A Triangle is either Contracting or Expanding depending on whether the channel lines are converging or expanding. Expanding Triangles are rare.

Triangle Rules

• Wave A of a CT is always either a Zigzag based pattern or a Flat. Wave A of an ET can only be a Zigzag based pattern.
• Within Wave A of a CT, Wave B must be less than 105% of Wave A’s price length. The same rule applies for Waves C and D of the CT.
• Wave B must be a Zigzag based pattern.
• Wave C of a CT can be any corrective pattern except a Triangle. Wave C of an ET must be a Zigzag based pattern.
• Wave B of a CT must retrace Wave A by 50%.
• For a CT, Wave C must be less than Wave B by price and Wave C must be greater than or equal to 50% of Wave B by price.
• For an ET, Wave B must be less than Wave C by price and Wave B must be greater or equal to 50% of Wave C by price.
• Wave D of a CT can be any corrective pattern except a Triangle. Wave D of an ET must be a Zigzag based pattern.
• Wave B, C and D must not move more than 10% beyond the A-C & B-D channel lines (based on the length of Wave C).
• In an ET, Wave C must be less than Wave D by price and Wave C must be more than 50% of Wave D by price.
• In an ET, Wave A must move within the A-C channel or pass through it by no more than 10% of the length of Wave B by price.
• In an CT, Wave D must be less than Wave C by price and Wave D must be greater than or equal to 50% of Wave C by price.
• The intersection of the channel lines must occur beyond the end of a CT, and before the beginning of an ET.
• The channel lines must either converge or diverge. They cannot be parallel. Wave D of a CT must not end such that when retraced 25% by E, E will not reach the price territory of A.
• Only one channel line in a CT may be horizontal. Neither channel line of an ET can be horizontal.
• The maximum time for Wave D is 4 times Wave C.
• Wave E of a CT can either be a CT or a Zigzag family pattern. For an ET, Wave E must be a Zigzag based pattern.
• In an ET, Wave E must be greater than Wave D by price and Wave D must be greater or equal to 50% of Wave E by price.
• In an ET, either Wave A or B will be the shortest Wave in the pattern.
• In a CT, Wave E will be less than Wave D by price and Wave E will be greater than or equal to 25% of Wave D by price.
• In a CT, either Wave A or B will be the longest Wave in the pattern. In a CT, the maximum time for Wave E is 4 times Wave C.
• Wave E must end in the price territory of A.
• Wave E must not pass through the B-D line, or if it does, by no more than 10% of the length of Wave D.
• The maximum number of pattern lengths into the future that the channel lines intersect is 6.

Triangle Guidelines

• Wave A is usually a zigzag family pattern. Wave B is usually a zigzag family pattern. Wave C is often a zigzag family pattern.
• Wave C usually takes more time than any other Wave in the pattern. Wave D is usually a zigzag family pattern.
• Waves B, C and D rarely move outside the B-D line. Waves A, B, C and E rarely move outside the A-C line.
• Wave E is usually a zigzag family pattern or the same type of Triangle as the larger pattern.
• Usually at least two Waves travelling in the same direction will relate by about 61.8%.
• It is common for two or more adjacent Waves will be related by 61.8%. In a CT, Wave E normally retraces Wave D by about 70%.
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