Gauss Law

I used the formula (E * Area * cos(theta)) and got the wrong answer (.02529) and I really don't understand why. I need help

The square surface shown measures 4.0 mm on each side. It is immersed in a uniform electric field with magnitude E = 1930 N/C. The field lines make an angle of 35° with a normal to the surface, as shown. Take the normal to be "outward," as though the surface were one face of a box. Calculate the electric flux through the surface.
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 Blog Entries: 9 Recognitions: Homework Help Science Advisor It looks correct (probably not the final #).U may have to check the units ($\left(1\mbox{mm})\right)^{2}=10^{-6} \mbox{m}^{2}$... Daniel.
 Recognitions: Gold Member Science Advisor Staff Emeritus 35 degrees to the normal is 55 degrees to the surface. Did you try that?

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