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From a solid right circular cylinder of length 4 cm and diameter 6 cm, conical cavity of the same height and base is hollowed out. The whole surface of the remaining solid (in, square cm) is
4 सेमी लंबाई और 6 सेमी व्यास के एक ठोस लम्ब वृत्तीय बेलन से, समान ऊंचाई ओर आधार के शंक्वाकार छिद्र कर निकाल लिया जाता है। तो शेष ठोस का (वर्ग सेमी में) सम्पूर्ण पृष्ठ क्षेत्रफल हैः

A

A)`15 pi`

B

B)`24 pi`

C

C)`48 pi`

D

D)`63 pi`

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CHAMPION PUBLICATION-2014 TIER-II PAPER(19)-EXERCISE
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  17. The area of a rhombus is 256 sq. cm. and one of its diagonal is twice ...

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  18. If m=sqrt(5+sqrt(5+sqrt(5+…..))) and n=sqrt(5-sqrt(5-sqrt(5-…..))), th...

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