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In figure the area of the shaded region ...

In figure the area of the shaded region is

A

`9picm^2`

B

`3picm^2`

C

`12picm^2`

D

`1.5picm^2`

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In the adjoining figure the boundary of the shaded region consist of four semi-circular are, two smallest being equal. If diameter of the largest is 14cm and that of the smallest is 3.5cm . Calculate the area of the shaded region. (Use pi=22/7 )

A sector from teo concentric circle is shown in Fig.14.If the radii of the circles are respectively 3.5 cm and 7 cm,find the area of the shaded region in the figure.

In the figure APB and AQB are semi-circles and AO=BO . If the perimeter of the figure is 40cm , find the area of the shaded region.

In given figure sectors of two concentric circles of radius 7 cm and 3.5 cm are shown. Find the area of the shaded region.

A square OABC is inscribed in a quadrant OPBQ of a circle. If OA=14 cm, find the area of the shaded region.

AB and CD are respectively arcs of two concentric circles of radii 21 cm and 7 cm and centre(see Fig.12.32).If angleAOB=30^@ ,find the area of the shaded region.

Find the area of the shaded region in the given figure. If PR=24cm , PQ=7cm and O is the centre of the circle.

Find the area of the shaded region in the given figure, where ABCD is a square of side 10cm and semi-circles are drawn with each side of the square as diameter.

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R G PUBLICATION-AREAS RELATED TO CIRCLES-EXERCISE
  1. The difference between the circumference and radius of a circle is 37 ...

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  2. The area of a circle is 49pi cm^2.Its circumference is

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  3. The area of two circles are in the ratio 4:9.The ratio of their circum...

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  4. The radius of a wheel is 0.25m.The number of revolution it will make t...

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  5. The area of incircle of an equilateral triangle is 154cm^2then the per...

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  6. The area of a circle is 220cm^2.The area of a square inscribed in it i...

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  7. The area of the circle that can be inscribed in a square of side 10 cm...

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  8. If diameter of a circle is increased by 40% then its area increased by

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  9. On decreasing the radius of a circle by 30% its area is decreased by

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  10. If the radius of a circle is diminished by 10% then its area is dimini...

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  11. The area of the largest triangle that can be inscribed in a semi-circl...

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  12. If the area of a square and a circle are same then the ratio of their ...

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  13. If the circumference of a circle increases from 4pi to 8pi then its ar...

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  14. If the perimeter of a circle is equal that of a square then the ratio ...

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  15. The perimeter of the sector OAB in figure is

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  16. In figure the area of the segment ABC is

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  17. In figure the area of the segment PRQ is

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  18. In figure the area of the shaded region is

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  19. If the area of a sector of a circle is 5/18 of the area of the circle ...

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  20. If the area of a circle is equal to the sum of the areas of two circle...

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