What's C and N?
Let \(WXYZ\) be a nondegenerate rectangle such that \(WX = C\) and \(XY = N\). Let \(P, Q\) be the midpoints of \(WX, XY\) respectively. Suppose \(WY\) and \(ZP\) intersects on \(R\), and \(WY\) and \(ZQ\) intersects on \(S\). What is the area of the triangle \(RSZ\)?