Answer variants:
bisected angles
corresponding pair of sides
\(ON\)
\(OM\)
[Given]
\(\angle PON\)
 
58.svg
 
\(OM\) is the angle bisector of \(\angle POQ\). \(NP\) and \(NQ\) meet \(OA\) and \(OB\) respectively at \(62^\circ\). Complete the missing fields to prove that the triangles \(OPN\) and \(OQN\) are congruent to each other.
 
Proof:
 
We know that
 
 is the angle bisector of \(\angle POQ\).
 
Hence,  
 \(= \angle QON\).
 
[Since the angles mentioned in the previous step are
]
 
Now, let us consider the triangles OPN and OQN.
 
\(\angle OPN = \angle OQN =\) \(62^\circ\) 
 
 
Also,  
 is common to both the triangles \(OPN\) and \(OQN\).
 
Here, Two corresponding pair of angles and one 
 are equal.
 
Thus by  congruence criterion, \(OPN\) \(\cong\) \(OQN\).