Question 688754
Set-Up
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A = L * W  (Area of a rectangle)
Given: A = 1083, L = 3W
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Solution:
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Substitute the given information into the equation for the area of a rectangle
{{{(1083) = (3W) * W}}} Simplify
{{{1083 = 3W^2}}} Divide both sides by 3
{{{361 = W^2}}} Take the squareroot of both sides
{{{sqrt(361) = W}}}
{{{highlight(19 = W)}}}

Now we can find the length
L =3W
Plug 19 in for W
{{{L = 3*(19)}}}
{{{highlight_green(L = 57 feet)}}}