Find the total surface area of a hemispherical bowl of thickness 'd' a – McqOptions

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1.	Find the total surface area of a hemispherical bowl of thickness 'd' and internal radius 'r'.
A.	4πr2 + 6πrd + 3d2
B.	π(4r2 + 6rd + 3d2)
C.	4πr2 + 4πrd + 3d2
D.	π(4r2 + 3rd + d2)
Answer» C. 4πr2 + 4πrd + 3d2

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