Answer: ![\angle{B}](https://tex.z-dn.net/?f=%5Cangle%7BB%7D)
Step-by-step explanation:
Given: Triangle ABC congruent triangle MNO.
We know that if two triangles are congruent then their corresponding angles and sides are also congruent by CPCTC [Congruent parts congruent triangle]
If triangle ABC congruent triangle MNO, then
corresponds to
[First letters]
corresponds to
[Second letters]
corresponds to
[Third letters]
Hence, the corresponding angle congruent to
=![\angle{B}](https://tex.z-dn.net/?f=%5Cangle%7BB%7D)