A wooden bowl is in shape of a hollow hemisphere of internal radius 8 cm and thickness 1 cm. Find the total surface area of the bowl?

A wooden bowl is in shape of a hollow hemisphere of internal radius 8 cm and thickness 1 cm. Find the total surface area of the bowl?
1). 964.85 sq cms
2). 1125.14 sq cms
3). 1687.71 sq cms
4). 281.29 sq cms

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