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SOH CAH TOA says that tan(x)= opposite over adjacent. The adjacent can be found using pythagorean theorem which states that if the adjacent side is y, 3 2 + y 2 = 2 2 . Then y 2 = 4 − 3 = 1 which shows that the adjacent side has a length of 1. When the adjacent is one, tan(x) = 1 3 which equals 3 .