Answer:
Option (3)
Step-by-step explanation:
By definition, rigid transformation is a transformation in which size of the object (angles and sides) remains the same.
Option (1).
2 right triangles have identical angle measures but different side lengths.
Since side lengths of the triangle are different so it's not a rigid transformation.
Option (2).
2 right triangles have different angles and side lengths.
Since the triangles are not equal, transformation is not a rigid transformation.
Option (3).
2 right triangle have identical side lengths and angle measures.
Therefore, It's a rigid transformation.
