Question 1061801
The formula for perimeter is:
{{{ P = 2W + 2L }}}
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{{{ 800 = 16*( 2W + 2L ) }}}
{{{ 2W + 2L = 50 }}}
{{{ W + L = 25 }}}
and
{{{ 800 = 50L }}}
{{{ L = 16 }}}
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{{{ W + 16 = 25 }}}
{{{ W = 9 }}}
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The area is:
{{{ A = 9*16 }}}
{{{ A = 144 }}} m^2
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check:
{{{ P = 2W + 2L }}}
{{{ P = 2*9 + 2*16 }}}
{{{ P = 18 + 32 }}}
{{{ P = 50 }}}
and
{{{ 16*50 = 800 }}}
OK