Answer:
The correct option is 2.
Explanation:
The construction steps of congruent triangles are:
1. Draw a base line.
2. Adjust the compass according to the base length of given triangle.
3. Place the compass on left end and mark an arc on the base line.
4. Using compass, draw corresponding angles on left end point and arc.
5. Draw lines through intersection of arcs from both end points.
In triangle 2 and given triangle, one corresponding side and two corresponding inclined angles are same. So, by ASA postulate of congruent triangle, triangle 2 and given triangle are congruent.
Therefore the correct option is 2.