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In Fig. 15.98, A B C is a right angle...

In Fig. 15.98, `A B C` is a right angled triangle in which `/_A=90o` , `A B=21\ c m` and `A C=28\ c m` . Semi-circles are described on `A B ,\ B C` and `A C` as diameters. Find the area of the shaded region. (FIGURE)

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RD SHARMA-AREAS RELATED TO CIRCLES-All Questions
  1. In Fig. 15.93, A B C D is a rectangle with A B=14\ c m and B C=7\ c...

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  2. In Fig. 15.95, the boundary of the shaded region consists of four s...

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  3. In Fig. 15.98, A B C is a right angled triangle in which /A=90o , A...

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  4. In Fig. 15.99, a square O A B C is inscribed in a quadrant O P B Q ...

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  5. Two circular pieces of equal radii and maximum area, touching each ...

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

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  7. In Fig. 15.101, A B C D is a trapezium of area 24. 5\ c m^2 . In it...

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  8. In Fig. 15.103, from a rectangular region A B C D with A B=20\ c m , a...

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  9. What is the ratio of the areas of a circle and an equilateral trian...

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  10. The circumference of two circles are in the ratio 2\ :3 . Find the ...

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  11. Write the area of the sector of a circle whose radius is r and l...

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  12. What is the length (in terms of pi ) of the arc that subtends an angle...

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  13. What is the angle subtended at the centre of a circle of radius 6 c...

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  14. What is the area of a sector of a circle of radius 5 cm formed by a...

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  15. In a circle of radius 10 cm, an arc subtends an angle of 108o at ...

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  16. If a square is inscribed in a circle, find the ratio of the areas of ...

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  17. Write the formula for the area of a sector of angle theta (in de...

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  18. Write the formula for the area of a segment in a circle a circle of...

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  19. If the adjoining figure is a sector of a circle of radius 10.5 cm, ...

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  20. If the diameter of a semi-circular protractor is 14 cm, then find i...

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