A satellite dish has a diameter of 8 feet. The depth of the dish is 1 foot at the center of the dish. Where should the receiver be placed?

Question

$\begin{array}{1 1} 4 \; ft\; above\; the\; vertex \\ 4 \; ft \;below \;the\; vertex \\ 2 \; ft\; above\; the\; vertex \\ At\; at\; 60^{\circ} angle\;to\; the\; satellite \end{array}$