Find the total surface area of a hemisphere of radius 7 cm?
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Surface area of hemisphere = 3πr^2
= 3 x 3.142 x 7^2
= 3 x 3.142 x 49
= 461.874
= 462cm^2
= 3 x 3.142 x 7^2
= 3 x 3.142 x 49
= 461.874
= 462cm^2
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hope it may help you,ans=154cmsq
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