ANSWER
They are similar (AA criteria)
Step-by-step explanation
Since segments BC and TU are parallel, we can think of segments AB and AC as transversals to those parallel lines. Therefore, angles B and U are corresponding angles and angles C and T are corresponding angles, therefore they are congruent. Also, both triangles share angle A, so that's congruent for both triangles as well.
Therefore, these triangles are indeed similar, by the AA similarity criteria.