Chapter 6 Vocabulary

Having the same measure; if one image can be obtained by another by a sequence of rotations, reflections, or translations.

• Translations
• Reflections
• Congruence
• Equal

Tags

CCSS.8.G.A.2

The resulting figure after a transformation

• Image
• Pre-Image
• Picture
• Translation

Tags

CCSS.HSG.CO.A.2

The line over which a figure is reflected.  

• Reflection
• Congruence
• Symmetry
• Line of Reflection

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

The original figure before a transformation.

• Image
• Pre-Image
• Transformation
• Photograph

A transformation where a figure is flipped over a line.  

• Symmetry
• Reflection
• Translation
• Transformation

A transformation in which a figure it turned about a fixed point.

• Rotation
• Reflection
• Symmetry
• Transformation

A type of symmetry a figure has if it can be rotated less than 360 degrees about its center and still look like the original.

• Rotational Symmetry
• Symmetry
• Reflection
• Transformation

An operation that maps a geometric figure, preimage, onto a new figure, image.

• Transformation
• Translation
• Rotation
• Reflection

A transformation that slides a figure from one position to another without turning.  

• Translation
• Reflection
• Rotation
• Symmetry

A transformation that enlarges or reduces a figure by a scale factor.

• Dilation
• Enlarge
• Reduce
• Scale factor