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The diameter of a sphere is 6 cm.It is m...

The diameter of a sphere is 6 cm.It is melted and drawn into a wire of diameter 2 mm.The length of the wire is__

A

18m

B

36m

C

24 m

D

76 m

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R G PUBLICATION-SURFACE AREA AND VOLUMES-EXERCISE
  1. A cone is cut by a plane parallel to its base and the upper part is re...

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  2. During conversion of a solid from one shape to another,the volume of t...

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  3. The diameter of a sphere is 6 cm.It is melted and drawn into a wire of...

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  4. The volume of a cube is 2744cm^3.Its surface area is a)1176cm^2 b) 61...

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  5. The length of the diagonal of a cube 6sqrt3cm.Its total surface area i...

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  6. If edge of a cube is increased by 50% the percentage increase in the s...

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  7. A metallic sphere of radius 10.5cm is melted and then recast into smal...

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  8. A sphere of radius 6cm is dropped into a cylindrical vessel partly fil...

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  9. The curve surface area of a right circular cone of height 15cm and bas...

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  10. In a shower,5 cm rain falls.The volume of the water that falls on 2 he...

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  11. The ratio of the total surface area to the lateral surface area of cyl...

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  12. On increasing each of the radius of the base and the height of a cone ...

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  13. If three metallic spheres of radii 6cm,8cm and 10cm are melted to form...

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  14. A right triangle with sides 3cm,4cm and 5cm is rotated about the side ...

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  15. The volume of the greatest sphere that can be cut off from a cylindric...

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  16. The maximum volume of a cone that can be carved out of a solid hemisph...

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  17. The diameter of the ends of a frustum of a cone are 32 cm and 20cm.If ...

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  18. The circular ends of a bucket are of radii 35cm and 14 cm and the heig...

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  19. The height and radius of the cone of which the frustum is a part are h...

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  20. If the radius of the base of a right circular cylinder is halved,keepi...

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