Study the figure given below, and find the specified angle.
 
Figure 26.svg
 
Here, \(\angle CAO =\) 40\(^\circ\), \(\angle ACO =\) 42\(^\circ\), and \(\angle ODB =\) 45\(^\circ\). Using the known data, find \(\angle OBD\).
 
\(\angle OBD =\) \(^\circ\)