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The internal diameter of a hollow hemisp...

The internal diameter of a hollow hemispherical vessel is 24 cm. It is made of a steel sheet which is 0.5 cm thick. What is the total surface area (in `cm^2`) of the vessel ?
एक खोखले अर्धगोलीय बर्तन का आतंरिक व्यास 24 सेमी है | यह इस्पात की चादर से बना हुआ है जिसकी मोटाई 0.5 सेमी है | इस बर्तन का कुल पृष्ठ क्षेत्रफल ( वर्ग सेमी में) ज्ञात करें |

A

`612.75 pi`

B

`468.75 pi`

C

`600.2 pi`

D

`600.5 pi`

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