A kite in the shape of a square with a diagonal 32 cm attached to an equilateral triangle of the base 8 cm. Approximately how much paper has been used to make it?
[A] $539.217 cm^{2}$
[B] $538.721 cm^{2}$
[C] $540.712 cm^{2}$
[D] $539.712 cm^{2}$