Rigid Transformations

Front

What is the mathematical term for the line that you reflect a shape over?

Back

Line of reflection

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

Why are two shapes congruent after a reflection?

Back

The sides and angles do not change when you reflect.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

Describe the translation from ABCD to A'B'C'D' if it is Up 3 and left 6.

Back

The shape moves 3 units up and 6 units to the left.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

Which type of rotation will not change the orientation of an object?

Back

360° rotation

Tags

CCSS.HSG.CO.A.4

Front

What symbol is used to show that two things are congruent?

Back

≅

Tags

CCSS.8.G.A.2

Front

What is a rigid transformation?

Back

A transformation that preserves the shape and size of a figure.

Tags

CCSS.HSG.CO.B.6

Front

What are the three types of rigid transformations?

Back

Translation, rotation, and reflection.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What happens to the coordinates of a point (x, y) when it is reflected over the x-axis?

Back

The new coordinates are (x, -y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What happens to the coordinates of a point (x, y) when it is reflected over the y-axis?

Back

The new coordinates are (-x, y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the effect of a 90° clockwise rotation on the point (x, y)?

Back

The new coordinates are (y, -x).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5