1. The problem statement, all variables and given/known data A point charge q = +2.6 µC is placed at each corner of an equilateral triangle with sides 0.13 m in length. What is the magnitude of the electric field at the midpoint of any of the three sides of the triangle? 2. Relevant equations E=(kq)/r^2 Fx=(F1+F2)cos Fy=(F1+F2)sin F=Fx+Fy 3. The attempt at a solution I first tried using the first equation, but I was pretty sure that I had to also use the other three equations, but I did not know how to properly solve for each of the F values. Am I supposed to use F=(kq1 q2)/r^2 ?