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The Brainliest Answer!

Surface area of sphere = 4πr²

Height of cylinder = r + r = 2r

Radius of cylinder = r

CSA of cylinder = 2πrh

= 2πr (2r)

= 4πr²

(iii)Ratio=4 \pi  r²/4 \pi

Therefore, the ratio between these two surface areas is 1:1.

2 5 2
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Ratio of surface area of cylinder to CSA of cylinder is:-

Surface area/ CSA = 2πr(h+r) / 2πrh

Therefore, 2πr and 2πr of both the side will be cut

Surface area: CSA = h+r:h
1 5 1
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