Question 963271
{{{L/W=8/1}}}
{{{L=8W}}}
The area is,
{{{L*W=200}}}

Substituting,
{{{8W*W=200}}}
{{{W^2=25}}}
{{{W=5}}}{{{ft}}}
Then,
{{{L=8(5)}}}
{{{L=40}}}{{{ft}}}