Answer
$2.09 \, ft^2$
Work Step by Step
$B = 180-(A+B) = 16^\circ$
$S = \dfrac{a^2 \sin{B} \sin{C}}{2 \sin{A}} = \dfrac{(3.48)^2 \sin{16} \sin{120.5} }{2\sin{43.5}}$
$S = 2.09 \, ft^2$
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