Question 172940
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We know, {{{A[R]=L*W}}}
But, {{{L=1.6W}}}
So,
{{{9000m^2=1.6W(W)}}}
{{{9000m^2=1.6W^2}}} -------->{{{cross(9000)5625/cross(1.6)=cross(1.6)W^2/cross(1.6)}}}
{{{W=sqrt(5625)}}}
{{{highlight(W=75m)}}}
Also, {{{L=1.6(75)=highlight(120m)}}}
Check,
{{{9000m^2=(120)(75)}}}
{{{9000m^2=9000m^2}}}
Thank you,
Jojo</pre>