Which transformation is a rigid transformation?

2 right triangles have identical angle measures but different side lengths. Triangle 2 has longer sides.

2 right triangles have different angles and side lengths.

2 right triangles have identical side lengths and angle measures. The second triangle is a reflection of the first.

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.