Question

The rule (x,y)→(−x,−y)(x,y)→(−x,−y) maps △RST△RST to △R′S′T′△R′S′T′.



Which statement correctly describes the relationship between △RST△RST and △R′S′T′△R′S′T′ ?

The triangles are congruent because △R′S′T′△R′S′T′ is a translation of △RST△RST , and a translation is a rigid motion.

The triangles are congruent because △R′S′T′△R′S′T′ is a rotation of △RST△RST , and a rotation is a rigid motion.

The triangles are not congruent because △R′S′T′△R′S′T′ is a rotation of △RST△RST , and a rotation is not a rigid motion.

@solomanzelman @zepdrix

Answer 1

The triangles are not congruent because △R′S′T′△R′S′T′ is a translation of △RST△RST , and a translation is not a rigid motion.