Question 1018971
w and L, dimensions;
{{{system(wL<=2250,2w+2L=210)}}}


{{{system(wL<=2250,w+L=105)}}}


{{{w=105-L}}}
-
{{{(105-L)L<=2250}}}
{{{105L-L^2<=2250}}}
{{{-L^2+105L-2250<=0}}}
{{{L^2-105L+2250>=0}}}


Check around the critical values  L as  {{{(105+- 45)/2}}}, or  30 and 75.
{{{highlight_green((L-30)(L-75)>=0)}}};
You cannot use L=0.
(0,30] ?
[30,75]?
[75,infinity) ?
Which interval will work?


RESULT:  Only the first listed interval will work.
{{{highlight(0<L<=30)}}}