In Fig., \(AB || CD\) and \(CD || EF\). Also \(EA ⊥ AB\). If \(∠ BEF = 42^°\), find the values of \(x, y\) and \(z\).
 
jan9_anglesxy.png
 
 
\(x=\) \(^\circ\)
 
\(y=\) \(^\circ\)
 
\(z=\) \(^\circ\)