Question

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How much Aluminium will be required to cover a cylinderical flask of length 30 cm??

Answer 1

the volume should be calculated..
V=pi*R*R*h

assuming unit radius

V=3.14*1*1*.3=.942

Answer 2

[2pirh + 2piR^2?\] @MARC_

Answer 3

cover you mean outer covering? if its the outer covering it should be surface area..

then its 2*pi*r*h + 2*pi*r*r =1.84 + 6.28 =8.122

Answer 4

The base and lid are not made of aluminium @MARC_ @rohitmathew

Answer 5

that makes it just the lateral surface.. assuming unit radius..
the answer would be 1.84

Answer 6

IS THE RADIUS GIVEN?

Answer 7

oh well if the base and lid aren't made of aluminium it would just be the rectangular side that is aluminium :)
So since the length is 30, this means you would use 2pi*r*h
so 2pi*r*30 . And then we'd need to know the radius or else we can't solve :)

Answer 8

The Radius isnt given :( @rohitmathew @butterflydreamer

Answer 9

what about.. a diagram or the diameter? :O

Answer 10

u need to put some value for the radius to get a numerical answer.. or the answer would be in terms of the the variable R
something like 1.84R..