Fibonacci Fan is used the same way as Fibonacci Retracement.
Fibonacci Fan is build the same way like Fibonacci Retracement. The lines of the Fibonacci Fan represent levels of retrace – levels of support and resistance
Fibonacci Arc is the same like Fibonacci Fan and Retracement, but with one difference. The Arcs have an advantage that calculated and time factor(fibonacci is part of elliot wave theory). It is recommended to use Arcs , when, after strong movement, start weak and continues correction in time.