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Mathematics 20 Online
OpenStudy (anonymous):

Two similar cylinders have heights 6 inches and 10 inches. What is the ratio of their surface areas? 3 : 5 9 : 25 1 : 4 9 : 10 I'm stuck between 3:5 and 9:25. I think the answer is 9:25 because I think you would reduce 6:10 to 3:5 and then square each number. Part of me thinks you might just have to reduce 6:10 to 3:5 though...which answer? Thank you!( :

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