A rigid motion is a transformation that preserves ▼
either length or angle measure.
both length and angle measure.
Each side in the preimage has length
nothing and each side in the image has length
nothing, so the transformation
▼
preserves
does not preserve
length. Each angle in the preimage has a measure of
nothing and each angle in the image has a measure of
nothing, so the transformation
▼
does not preserve
preserves
angle measure. Therefore, the transformation
▼
is not
is
a rigid motion.