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The slant height and base diameter of a ...

The slant height and base diameter of a conical tomb are 25 m and 14 m respectively. The cost of white-washing its curved surface at the rate Rs 210 per `100 m^2` is :

A

Rs 1233

B

Rs 1155

C

Rs 1388

D

Rs 1432

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MBD-Surface Areas and Volumes-Exercise
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  7. The curved surface area of a sphere of radius 7 cm is :

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  8. The curved surface area of a hemisphere of radius 21 cm is :

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  9. The curved surface area of a sphere of radius 14 cm is :

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  10. Curved surface area of sphere of diameter 14 cm is :

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  11. Total surface area of a hemisphere of radius 10 cm is :

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