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A hemisphere has 28 cm diameter. Find its curved surface area.?

1232 sq cm
1236 sq cm
1238 sq cm
1233 sq cm

Correct Answer: 1232 sq cm

Explanation:

Curved surface area = 2πr²
= 2π x 14 x 14 = 2 x (22/7) x 14 x 14
= 2 x 22 x 2 x 14
= 88 x 14
= 1232 sq cm

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