Question 1132022
Let {{{ x }}} = the width
{{{ 3x }}} = the length
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The formula for perimeter, P, is:
{{{ P = 2W + 2L }}}
{{{ 8.8 = 2x + 2*(3x) }}}
{{{ 8.8 = 8x }}}
{{{ x = 1.1 }}} km
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The formula for area, A, is:
{{{ A = W*L }}}
{{{ A = x*(3x) }}}
{{{ A = 3*x^2 }}}
{{{ A = 3*1.21 }}}
{{{ A = 3.63 }}} km^2
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If you want answer is square meters,
1000 m = 1 km
10^6 m = 1 km2
[ meters ] = [ meters / km ] * [ km ]
{{{ 10^6*3.63 = 3630000 }}}
3,630,000 m2