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Mathematics 9 Online
OpenStudy (anonymous):

Two similar cylinders have heights 6 inches and 15 inches. What is the ratio of their surface areas? Answer 4 : 25 8 : 25 9 : 10 9 : 25

jhonyy9 (jhonyy9):

the surface area of a cylinder is 2pir *height so than the ratio will be 6/15 = 2/5

OpenStudy (cwrw238):

6^2 : 15^2

OpenStudy (cwrw238):

or 4:25

OpenStudy (anonymous):

the surface area for the cylinder is the same as the circle and has nothing to do with height

OpenStudy (anonymous):

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