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A metallic hemispherical bowl is made up...

A metallic hemispherical bowl is made up of steel. The total steel used in making the bowl is `342 pi` cm^3, The bowl can hold `144 pi cm^3` water. What is the thickness (in cm) of bowl and the curved surface area (in `cm^2`) of outer side?
इस्पात से धातु का एक अर्धगोलाकार कटोरा बनाया गया है। कटोरे को बनाने में कुल 342 `pi से.मी.^3` इस्पात का प्रयोग किया गया है। कटोरा में 144 `pi से.मी.^3` जल आ सकता है। कटोरे की मोटाई (से,मी. में) तथा बाहरी सतह का वक्र पृष्ठिय क्षेत्रफल (`से.मी.^2` में) क्या हें?

A

`6162 pi`

B

`3162 pi`

C

`681 pi`

D

`381 pi`

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CHAMPION PUBLICATION-2017 TIER-II PAPER(12)-EXERCISE
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  2. A solid metal sphere has radius 14 cm. it is melted to from small cone...

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