2•8.2•5.1=83.64 square feet.
ANSWER: 83.64 Square Feet
I think you can use cosine rule if only the lines that form the <52 are equal.
Set equations for both containers:
Condition one: $y=2x$
Condition two: $(y-3)=4.5(x-2)$
plug in $y$ from condition one into the second equation:
$2x-3=4.5x-9$
simplify gives: $2.5x=6$
$\boxed{x=2.4}$
$\boxed{y=4.8}$
I think the answer is false
