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Anyone can help me in my additional mathematics 's project work?

Its about:The Muhibah Company is a manufacturer of cylindrical aluminium tinsThe manager plans to reduce the cost of productionThe productional cost is proportional to the area of the aluminium sheet usedThe volume that each tin hold is 1000cm cube (1liter).1Determine the value of h, r and hence calculate the ratio of h/r when the total surface area of each tin is aluminiumHere, h cm denotes the height and r cm the radius of the tin.2The top and bottom pieces of the tin of height h cm are cut from square-shaped aluminium sheets.Determine the value for r, h and hence calculate the ratio h/r so that the total area of the aluminium sheets used for making the tin is minimum.3Investigate cases where the top and bottom surfaces are cut fromi.)Equilateral triangleii)Regular hexagonFind the ratio of h/r for each case.I really really really thanks for those who can solve my problemThanks once again.

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