Math I 5.5

transformations that maintain an object's shape and size

• rigid motions
• non-rigid motions

transformations that change an object's shape and size

• rigid motions
• non-rigid motions

same size and shape

• congruent
• similar
• different

Which of the following are rigid motions?

• translation, reflection, rotation
• translation, dilation, rotation
• dilation, stretch, compression
• reflection, rotation, stretch

Which of the following are non-rigid motions?

• translation, reflection, rotation
• translation, dilation, rotation
• dilation, stretch, compression
• reflection, rotation, stretch

In which rigid motion does the orientation stay the same?

• translation
• reflection
• rotation

Which rigid motion creates a mirror image?

• translation
• reflection
• rotation

In which rigid motion do all points move along in circular arcs?

• translation
• reflection
• rotation

In which rigid motions does the orientation change?

• translation, reflection
• translation, rotation
• reflection, rotation

In which non-rigid motion does horizontal distance stay the same?

• vertical transformation
• horizontal transformation