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The radius of hemisphere is 14cm. What i...

The radius of hemisphere is 14cm. What is the cost of painting the outer curved surface of the hemisphere at the rate of Rs. 45 per sq.cm? (Take `pi=22/7`)
एक अर्धगोले की त्रिज्या 14 सेमी है | इस अर्धगोले के बाहरी वक्र पृष्ठ को 45 रुपये प्रति वर्ग सेमी की दर से रंगने की लागत ज्ञात करें |

A

Rs 53160

B

Rs 55440

C

Rs 56820

D

Rs 58280

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