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Question

If the radius of a sphere is 12 cm, then its surface area will be .
(Take π=3.14)

A
1808.64 cm2
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B
2808.64 cm2
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C
1800.64 cm2
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D
1900 cm2
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Solution

The correct option is A 1808.64 cm2
Given: Radius of the sphere = 12 cm
Surface area of the sphere
=4πr2=4π×122=4π×144=576π=1808.64 cm2

Surface area of the sphere is
1808.64 cm2

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