The two trapezoidal faces together have an area of
.. (5 in)*(5 in +9 in) = 70 in^2
The remaining surface can be unfolded to an area that is
.. (5 in)*(5 in +9 in +6.4 in +5 in) = 127 in^2
Together, these add to
.. 70 in^2 +127 in^2 = 197 in^2 . . . . . . . the 4th selection
