Geometric Transformations Review

Front

What is a geometric transformation?

Back

A geometric transformation is a change in the position, size, or shape of a figure.

Tags

CCSS.HSG.CO.A.2

Front

What are the four main types of geometric transformations?

Back

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a translation in geometry?

Back

A translation moves every point of a figure the same distance in the same direction.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What does it mean for figures to be congruent?

Back

Figures are congruent if they have the same shape and size.

Tags

CCSS.8.G.A.2

Front

True or False: All transformations except for dilations keep the figures congruent.

Back

TRUE

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a rotation in geometry?

Back

A rotation turns a figure around a fixed point called the center of rotation.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

How do you rotate a point (x, y) 90 degrees clockwise?

Back

The new coordinates will be (y, -x).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

How do you rotate a point (x, y) 90 degrees counter-clockwise?

Back

The new coordinates will be (-y, x).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a reflection in geometry?

Back

A reflection flips a figure over a line, creating a mirror image.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a dilation in geometry?

Back

A dilation changes the size of a figure but keeps its shape, using a scale factor.

Tags

CCSS.8.G.A.3