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Find the slant height, volume, curved...

Find the slant height, volume, curved surface area and the whole surface area of a cone of radius 21 cm and height 28 cm.

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RS AGGARWAL-VOLUME AND SURFACE AREAS-All Questions
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  5. How many metres of cloth 5m wide will be required to make a conical...

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  6. The heights of two right circular cones are in the ratio 1 : 2 and ...

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  7. If the heights of two cones are in the ratio 7 : 3 and their diamet...

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  8. The radii of the bases of a cylinder and a cone are in the ratio of...

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  9. A conical vessel, whose internal radius is 12 cm and height 50 cm, ...

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  10. The radius and height of a right solid circular cone are r and h re...

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  11. In a rocket shaped firecracker, explosive powder is to be filled up...

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  12. Find the volume and surface area of a sphere of radius 10.5 cm.

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  13. If the radius of a sphere is increased by 50%, find the increase pe...

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  14. Find the number of lead balls, each 1 cm in diameter that can be ma...

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  15. Three spheres of radii 3 cm, 4 cm and 5 cm are melted to form a new...

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  16. How many spherical bullets can be made out of a lead cylinder 28 cm...

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  17. A copper sphere of diameter 18 cm is drawn into a wire of diameter ...

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  18. Two metallic right circular cones having their heights 4.1 cm and 4...

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  19. A cone and a sphere have equal radii and equal volumes. Find the ra...

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  20. Find the volume, curved surface area and the total surface area of ...

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