PDF chapter test TRY NOW

In Fig., lines \(XY\) and \(MN\) intersect at \(O\). If \(∠ POY = 90^°\) and \(a : b = 2 : 3\), find \(c\).
 
YCIND_231205_5809_10.png
 
\(c=\) \(^°\)