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Find : (i) the curved surface area and...

Find :
(i) the curved surface area and
(ii) the total surface area of a hemisphere of radius 21 cm.

Text Solution

Verified by Experts

The correct Answer is:
(i) 2772 `cm^(2)`
(ii) 4158 `cm^(2)`
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KUMAR PRAKASHAN-SURFACE AREAS AND VOLUMES-MULTIPLE CHOICE QUESTIONS
  1. Find : (i) the curved surface area and (ii) the total surface area...

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  2. The total surface area of a cuboid with length 20 cm, breadth 15 cm an...

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  3. The lateral surface area of a cuboid with length 15 cm, breadth 8 cm a...

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  4. The diameter of a cylinder is 7 cm and its curved surface area is 220 ...

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  5. The total surface area of a closed cylinder with radius 3.5 cm and hei...

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  6. The curved surface area of a cone is 880 cm^(2). If its slant height i...

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  7. The curved surface area of a cone with diameter 14 cm and slant height...

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  8. The height of a cone is 24 cm and its slant height is 25 cm. Then, its...

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  9. The circumference of the base of a cone is 44 cm and its slant height ...

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  10. The diameter of a cone is 7 cm and its slant height is 16.5 cm. Then, ...

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  11. Total surface area of a hemisphere with radius 7 cm is ……… cm^(2).

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  12. Total surface area of a hemisphere is 72 cm^(2). Then, its curved surf...

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  13. The surface area of a sphere is 616 cm^(2). Then, its radius is ……… cm...

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  14. In a cuboid, the area of the face with sides length and breadth is 120...

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  15. The volume of a cylinder is 2200 cm^(3) and its height is 7 cm. Then, ...

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  16. The radius and height of a cone are 7 cm and 3 cm respectively. Then, ...

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  17. The volume of a sphere is 4.5 picm^(3). Then, its diameter is ……… cm.

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  18. The ratio of radii of two cones is 2 : 3 and the ratio of their height...

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  19. The circumference of the base of a cone is 44 cm and its height is 6 c...

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