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a right circular cylinder just encloses a sphere of radius 20cm. find ratio of the sphere's surface area to cylinder's CSA. (full steps please) |
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Answer» Answer: 1:1 Step-by-step EXPLANATION: radius of sphere = 20 = radius of cylinder diameter of sphere = 40 = height of cylinder CSA of sphere = 4πr² = 1600πcm² CSA of cylinder = 2πrh = 1600πcm² ratio b/w CSA of sphere and cylinder = 1600π/1600π =>1:1 |
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