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A circus tent is cylindrical to a heig...

A circus tent is cylindrical to a height of 4 m and conical above it. If its diameter is 105 m and its slant height is 40 m, the total area of the canvas required in `m^2` is

A

`1760 m^(2)`

B

`2640 m^(2)`

C

`3960 m^(2)`

D

`7920 m^(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
Area of canvas `=(2xx(22)/7xx(105)/2xx4+(22)/7xx(105)/2xx40)m^2`
`(1320+6000)m^2=7920m^2`
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RS AGGARWAL-VOLUME AND SURFACE AREAS OF SOLIDS-Multiple Choice Questions (Mcq)
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  2. The radii of two cylinders are in the ratio 2:3 and their heights are ...

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  3. Two circular cylinderical of equal volumes have their height in the ra...

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  4. The radius of the base of a cone is 5 cm and ir=ts heights is 12 cm . ...

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  5. The diameter of the base of a cone is 42 cm and its volume is 12936 cm...

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  6. The area of the base of a right circular cone is 154 cm^2 and its heig...

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

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  8. The radii of the base of a cylinder and a cone are in the ratio 3:4 . ...

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  9. A metallic cylinder of radius 8 cm and height 2 cm is melted and conve...

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  10. The height of a conical tent is 14 m and its floor area is 346.5 m^2 ....

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  11. The diameter of a sphere is 14 cm. Its volume is

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  12. The ratio between the volumes of two spheres is 8 : 27. What is the ra...

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  13. A hollow metallic sphere with external diameter 8 cm and internal diam...

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  14. A metallic cone having base radius 2.1 cm and height 8.4 cm is melted ...

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  15. The volume of a hemisphere is 19404 cm^3. The total surface area of th...

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  16. Find the volume of a sphere whose surface area is 154 cm^(2)

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  17. The total surface area of a hemisphere of radius 7 cm is

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  18. If the radii of the circular ends of a bucket of height 40 cm are of...

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  19. If the radii of the circular ends of a bucket 24 cm high are 5 cm a...

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  20. A circus tent is cylindrical to a height of 4 m and conical above it...

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