Question 366904
{{{h=b+2}}}
.
.
{{{A=(1/2)bh=40}}}
{{{bh=80}}}
{{{b(b+2)=80}}}
{{{b^2+2b-80=0}}}
{{{(b+10)(b-8)=0}}}
Two solutions but only one is positive,
{{{b-8=0}}}
{{{highlight(b=8)}}}ft
.
.
{{{h=8+2}}}
{{{highlight(h=10)}}}ft