Question 1127647
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Your notation is unclear; I can't see any interpretation of the given information that makes sense.<br>
"CE=6" appears to be the length of a segment.  So then what do "mEA", "mDE", and "mCD" represent?  They can't be arcs, because E is not on the circle.  And if they are also lengths, then the given information says 4+6 = 5, which is clearly impossible.<br>
Re-post, providing the given information in a clear manner.