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In the given figure, ABCD is a trapezium...

In the given figure, ABCD is a trapezium with `AB||CD` nad `/_BCD=60^(@)`.If BFEC is a sector of a circle with centre C and `AB=BC=7` cm and `DE=4cm`, then find the area of the shaded region. [Use `pi=22//7` and `sqrt(3)=1.73`]

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The correct Answer is:
`28.89cm^2`
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