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in Surface Areas And Volumes by (27.0k points)
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The total surface area of a hemisphere of radius r is :

A. πr2 

B. 2πr2 

C. 3πr2 

D. 4πr2

1 Answer

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by (27.4k points)
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Best answer

Option : (C)

Total surface area of a hemisphere = curved surface area + base area 

⇒ total surface area of a hemisphere of radius r is 

= 2πr2 + πr2 = 3πr2

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