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The ratio of two spheres is 1:2, then th...

The ratio of two spheres is 1:2, then the ratio of their surface areas is

A

1:1

B

1:4

C

1:6

D

1:9

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VGS PUBLICATION-BRILLIANT-SURFACE AREAS AND VOLUMES-EXERCISE
  1. The height and slant height of a cone are 7 cm and 25 cm respectively....

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  2. Volume of hemisphere is …… cu. units.

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  3. The ratio of two spheres is 1:2, then the ratio of their surface areas...

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  4. The horizontal cross-section of a cylinder is a

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  5. The vertical cross section of a cylinder is…….

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  6. The vertical cross-section of a cone is

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  7. When a cone is opened along its slant height, it gets the shape of a

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  8. When a cylinder is opened along its height, it gets the shape of a

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  9. Area of an equilateral triangle whose side is 2 cm is

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  10. Volume of a pyramid whose base area is 18 ̀cm^2 ̀ and height 8 cm is

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  11. A regular square pyramid has its base edge 6 cm and height 5 cm. Then ...

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  12. How does the total surface area of a box changed if each dimension is ...

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  13. A rectangular of length 44 cm is folded along with its breadth and for...

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  14. Find curved surface area of a cylinder having r = x cm and h = y cm.

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  15. The ratio of volumes of cylinder and cone having same radii and height...

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  16. Total surface area of the cylinder whose radius is 3*5 cm and height 2...

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  17. Formula to find the slant height of a cone is

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  18. Surface area of a sphere whose radius is 1 unit.and height is 1 unit.

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  19. In a cylinder, if radius is halved and height is doubled, then volum...

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

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