Tatoooo Tatoooo

25-02-2018
Mathematics

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please help fast!! what is the surface area??

please help fast what is the surface area class=

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sqdancefan sqdancefan

25-02-2018

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

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