Question 988231
x, length
y, width
h, height
{{{system(x=12,y=1.5+h)}}}


One wall's area is  {{{xh}}} and the neighboring or adjascent wall's area is {{{yh}}}.
Total WALL area is  {{{2xh+2yh=105}}}
{{{2xh+2(1.5+h)h=105}}}
{{{2xh+3h+2h^2=105}}}
{{{2*12h+3h+2h^2=105}}}
{{{2h^2+27h=105}}}
{{{2h^2+27h-105=0}}}
Not factorable in or with integers.


h=after general solution method formula for quadratic equation
{{{highlight(h=(-27+sqrt(1569))/4)}}}
Do whatever you can or want with the expression.
( 3.15 meters )