Geometric Transformation Vocabulary

A change in the size or position of a figure.

• Transformation

• Translation

• Reflection

• Rotation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

The original figure in a transformation.

• Preimage

• Image

• Transformation

• Dilation

Tags

CCSS.HSG.CO.A.2

A figure resulting from a transformation.

• Image

• Preimage

• Transformation

• Dilation

Tags

CCSS.HSG.CO.A.2

A movement (slide) of a figure along a straight line.

• Translation

• Reflection

• Rotation

• Dilation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

A transformation of a figure that flips the figure across a line.

• Reflection

• Translation

• Rotation

• Dilation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

A line that a figure is flipped across to create a mirror image of the original figure.

• Line of Reflection

• Line of Symmetry

• Congruent

• Coordinate Plane

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

A line that divides a figure into two congruent reflected halves.

• Line of Symmetry

• Line of Reflection

• Center of Rotation

• Center of Dilation

Tags

CCSS.4.G.A.3

A transformation in which a figure is turned about a point.

• Rotation

• Relfection

• Dilation

• Transformation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

The point about which a figure is rotated.

• Center of Rotation

• Center of Dilation

• Reflection

• Rotation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Having the same size and shape; ^≅.

• Congruent

• Similar

• Image

• Preimage

Tags

CCSS.8.G.A.2