Hi thanks for your help

Question

The answer to this problem is supposed to be 1870 [N (m^2)/ c] but im getting 1497 instead. If you could help me get the right answer that would be super.

The problem says that there is a pyramid with a square base whose side lengths are 6 m and the height of the pyramid is 4 m [so if you divide each face symmetrically, you get a 3-4-5 triangle).

I am told that there is a vertical electric field of 52 N/c, and I have to find the electric flux through each of the 4 faces.

What I started with was calculating the perpendicular electric charge, by doing [cos(53deg)]*(52 N/c) = 31.2 N/c

I also know that each face has an area of (0.5)*(4)*(6) = 12 m^2

So I plugged these values into phi=4*EA

so phi= 4* (31.2)(12) = 1497.6N(m^2)/c

Please aid in solving this! Thank you--