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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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The correct Answer is:
`6.125 cm^(2)`
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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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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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NAGEEN PRAKASHAN-AREA RELATED TO CIRCLES-Exercise 12 B
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  6. In the given figure, ABCD is a square of side 7 cm. DPBA and DQBC are ...

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  7. In the given figure, three semicircles are drawn of diameter 10 cm, 7 ...

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  8. From a thin metallic sheet in the shape of a trapezium ABCD in which A...

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  14. A girl formed of design in a circle of radius 42 cm leaving an equilat...

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  15. In the given figure, O is the centre of the bigger circle and AC is it...

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  16. The area of a circle inscribed in an equilateral triangle is 154\ c...

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  17. A girl was wearing a set of earings made of the line segments, semicir...

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  18. The given figure shows a square ABCD of side 20 cm. Semicircle are dra...

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  19. From a piece of paper in the shape of a regular hexagon, sectors of ci...

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