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The height of a cone is 21 cm and its sl...

The height of a cone is 21 cm and its slant height is 28 cm. the volume of the cone is

A

`7356cm^3`

B

`7506 cm^3`

C

`7546 cm^3`

D

`7564 cm^3`

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MODERN PUBLICATION-SURFACE AREAS AND VOLUMES-EXERCISE
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  2. The radius of a wire is decreased to one third. If volume remains the ...

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  3. The height of a cone is 21 cm and its slant height is 28 cm. the volum...

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  4. If the volumes of two cones be in the ratio 1:4 and the radii of their...

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  5. The ratio of the volumes of a right circular cylinder and a right circ...

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  6. If the height and the radius of a cone are doubled, he volume of the c...

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  7. The volume of a sphere of radius 10.5 cm is

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  8. The volume of a sphere is 38808 cm^3. Its curved surface area is

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  9. The radius of a hemispheircal balloon increases from 6 cm to 2 cm is a...

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  10. A hemispherical bowl of internal radius 9 cm is full of liquid. This ...

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  11. A cone and a hemispher have equal bases and equal volumes. Find the ra...

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  12. The radius of a sphere is 2r. Then its volume will be

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  13. The total surface area of a cube is 96cm^2. The volume of the cube is

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  14. A cone is 8.4 cm high and the radius of its base is 2.1 cm. It is melt...

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  15. In a cylinder radius is doubled and height is halved, curved surface a...

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  16. The total surface area of a cone whose radius is r/2 and slant height ...

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  17. Base radius of two cylinder are in the ratio 2 : 3 and their heights a...

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  18. The lateral surface area of a cube is 256cm^2. The volume of the cube ...

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  19. The number of planks of dimensions (4mxx50mxx20cm) that can be stored ...

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  20. The length of the longest pole that can be put in a room of dimensions...

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