Try it! Just a little geometry

Geometry Level 3

ABCDABCD is a square which has an area of 11. EE and FF are points on the square's sides as shown in the figure above. ΔAEF\Delta AEF has a perimeter of 22. Diagonal BDBD divides ΔECF\Delta ECF into two pieces: a smaller triangle and a quadrilateral. Which has a larger area?

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