<PRE><B>Question 1128759</B>


a rectangular water jug has a square base {{{80mm}}} by {{{80mm}}}

 what must be the height {{{h}}} of the jug in {{{mm}}} if it is to contain {{{1}}} litre of water

first, you are looking for a volume:

{{{V=a*b*h}}} where {{{a=80mm}}}, {{{b=80mm}}}, and since {{{1}}} litre of water equals to {{{1000000mm^3}}}, we have


{{{1000000mm^3=80mm*80mm*h}}}

{{{1000000mm^3=6400mm^2*h}}}

{{{h=10000cross(00)mm^cross(3)/64cross(00)cross(mm^2)}}}

{{{h=10000mm/64}}}

{{{h=156.25mm}}}




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