Question

Which transformation does NOT preserve congruent figures?

reflection over the y-axis
90 degree rotation about the origin
dilation by a scale factor of

translation using the rule (x, y) → (x + 2, y - 5)

Answer 1

a dillation

Explanation:

a dillation is a transformation which is not rigid since it changes the size of the figure in particular ways by using scale factor.it creates image that is exactly same as the original, but have a different size it stretches or shrinks the figure hence it does not preserve congruence