Question

what is a key feature of a shape after it undergoes a rigid transformation? a. it changes size. b. it is scaled. c. it rotates. d. it maintains congruence.

Explanation:

A rigid transformation in geometry, such as translation, rotation, or reflection, preserves the shape and size of the figure. This means the pre - image and the image are congruent. Options a and b involve changes in size which are non - rigid transformations. Option c is just one type of rigid transformation. The key feature of any rigid transformation is congruence maintenance.

Answer:

d. It maintains congruence.