Transformation Rules

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape in some way to create a new shape.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What are the four main types of transformations?

Back

The four main types of transformations are translation, rotation, reflection, and dilation.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

Define translation in geometry.

Back

Translation is a transformation that moves every point of a shape the same distance in the same direction.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a rotation?

Back

A rotation is a transformation that turns a shape around a fixed point, called the center of rotation.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a reflection?

Back

A reflection is a transformation that flips a shape over a line, creating a mirror image.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What does congruence mean in geometry?

Back

Congruence means that two shapes are the same size and shape.

Tags

CCSS.8.G.A.2

Front

What is the rule for a 90° clockwise rotation?

Back

The rule for a 90° clockwise rotation is (x,y) → (y, -x).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What happens to the coordinates during a reflection over the x-axis?

Back

During a reflection over the x-axis, the y-coordinate changes sign: (x,y) → (x,-y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What happens to the coordinates during a reflection over the y-axis?

Back

During a reflection over the y-axis, the x-coordinate changes sign: (x,y) → (-x,y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the effect of a 180° rotation on coordinates?

Back

A 180° rotation changes both coordinates' signs: (x,y) → (-x,-y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5