Question 544967
Let {{{ L }}} = length
Let {{{ W }}} = width
given:
{{{ L = 4W }}} m
{{{ L*W = 192 }}} m2
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By substitution:
{{{ 4W*W = 192 }}}
{{{ 4W^2 = 192 }}}
{{{ W^2 = 48 }}}
{{{ W^2 = 16*3 }}}
{{{ W = 4*sqrt(3) }}} m
and, since
{{{ L = 4W }}}
{{{ L = 16*sqrt(3) }}} m