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The diameter of a spherical balloon incr...

The diameter of a spherical balloon increases from 14 cm. to 28 cm. as air is being pumped into it. Find the ratio of surface areas of the balloons in the two cases.

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VGS PUBLICATION-BRILLIANT-SURFACE AREAS AND VOLUMES-EXERCISE
  1. The ratio of radii of two spheres is 2: 3. Find the ratio of their sur...

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  2. Find the total surface area of hemi sphere of radius 10 cm. (Use pi = ...

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  3. The diameter of a spherical balloon increases from 14 cm. to 28 cm. as...

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  4. A hemispherical bowl is made of brass .0.25 cm. thickness .The inner r...

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  5. The diameter of a lead ball is 2.1 cm The density of the lead used is ...

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  6. A metallic cylinder of diameter 5cm. And height 3(1)/(3) cm is melt...

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  7. How many litres of milk can a hemispherical bowl of diameter 10.5 cm ....

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  8. A hemispherical bowl has diameter 9 cm. The liquid is poured into cyli...

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  9. Find the surface area of a cuboid with dimensions 10 cm, 6 cm and 4 cm...

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  10. Find the lateral surface area of a cuboid with dimensions 8 cm, 5 cm, ...

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  11. Find the total surface area of the cube with side 7.5 cm.

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  12. If the volume of a cube is 1728 cm^3,find the edge of the cube.

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  13. The base of a right prism is an equilateral triangle of side 4 cm. Fin...

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  14. The base of a prism is square in shape whose side is 8 cm. Find the vo...

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  15. The volume of a cuboid is 900 cm^3. The length is 15 cm and breadth is...

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  16. Find CSA. Of of the cylinder: r = 3 cm, h = 14 cm

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  17. Find the TSA of the cylinder whose radius is 7 cm and height is 10 cm.

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  18. Find the volume of a cylinder of radius 3.5 cm and height 8 cm.

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  19. The C.S.A. of a cylinder is 792 cm^2.Find its height if its radius is ...

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  20. The volume of a cylinder is 1540 cm^3. Find its radius if its height i...

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