Known: as shown in the figure, the quadrilateral ABCD is a circle inscribed quadrilateral, e is a point on the diagonal ad, and ab = ad = AE verify: angle CAD = 2 angle CBE

Known: as shown in the figure, the quadrilateral ABCD is a circle inscribed quadrilateral, e is a point on the diagonal ad, and ab = ad = AE verify: angle CAD = 2 angle CBE

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Ad is diagonal? Are you sure?
If AC is diagonal