Homework Help: maths

Posted by tuhituhi on Wednesday, November 21, 2012 at 12:12pm.

A cylindrical vessel without a lid is made from a sheet of metal . Find the area of the metal required if the length of the vessel is 35cm and its diameter is 28cm ????

maths - Steve, Wednesday, November 21, 2012 at 12:41pm
top and bottom have area πr^2 = 196π
sides have area 2πrh = 980π
total: 1176π
maths - Steve, Wednesday, November 21, 2012 at 12:42pm
oops. gotta add another 196π since we have top and bottom.

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