A charge Q is placed on the center of the square base of a pyramid with the four faces above being equilateral triangles. Determine the net electric field flux Pe through one of the triangular faces...

Extracted text: A charge Q is placed on the center of the square base of a pyramid with the four faces above being equilateral triangles. Determine the net electric field flux Pe through one of the triangular faces of the pyramid. Express your answer in terms of Q and €o.