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What is the curved surface area of a hemisphere of the radius 10 cm?

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621.57 cm 2

628.57 cm 2

528.47 cm 2

428.77 cm 2

answer is B.

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Detailed Solution

Given-

r = 10 c m

Curved surface area = 2 π r 2 = 2227 (10) 2 = 447100 = 628.57

Thus, the curved surface area of hemisphere is

628.57 cm 2

.
Hence, option 2 is the correct option.

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