Answer
$256 \ ft^2$
Work Step by Step
Here, $e=(12.8)(2) =25.6 \ ft$ and $f=(10)(2)=20 \ ft$
Now, the area of a kite is equal to $A=\dfrac{1}{2} (e)(f)\\=\dfrac{1}{2} (25.6)(20)\\= 256 \ ft^2$
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