The additional information which needed for a ASA congruence correspondence is angle N is congruent to angle M
What is ASA congruency rule?
If any two angles and side included between the angles of one triangle are equivalent to the corresponding two angles and side included between the angles of the second triangle.
According to the given question.
We have two triangle NDA and MTO in which
m ∠NDA = m ∠MTO
and NA = MT
Now, according to ASA congruency rule
NA = MT
if m ∠DNA = m ∠TMO
Therefore, the additional information which needed for a ASA congruence correspondence is angle N is congruent to angle M.
Thus, option A is correct.
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