Question 957264
For a rectangle,
{{{A=L*W}}}
{{{L=W+3}}}
{{{(W+3)W=88}}}
{{{W^2+3W-88=0}}}
{{{(W+11)(W-8)=0}}}
Only the positive solution makes sense here.
{{{W-8=0}}}
{{{W=8}}}{{{ft}}}
Then,
{{{L=8+3}}}
{{{L=11}}}{{{ft}}}