From a thin metallic piece in the shaped...

From a thin metallic piece in the shaped of a trapezium ABCD in which `AB||CD` and `/_BCD=90^(@)`,a quarter circle BFEC is removed. Given, `AB=BC=3.5cm` and `DE=2cm` calculate the area of remaining (shaded) part of metal sheet.

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From a thin metallic sheet in the shape of a trapezium ABCD in which AB ||CD and angle BCD = 90^(@) , a quarter circle BFEC is removed. Given AB = BC = 3.5 cm and DE = 2cm . Calculate the area of shaded region.

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