DOL Monday 11.18: Transformations Introduction

Front

What is a translation in geometry?

Back

A translation is a type of transformation that 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 is another name for a rotation?

Back

A rotation is also known as a turn.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the term for the image before a transformation occurs?

Back

The image before a transformation is called the Pre-Image.

Tags

CCSS.HSG.CO.A.2

Front

What does it mean for two shapes to be congruent?

Back

Two shapes are congruent if they have the same size and shape.

Tags

CCSS.8.G.A.2

Front

What is a dilation in geometry?

Back

A dilation is a transformation that alters the size of a figure but keeps its shape the same.

Tags

CCSS.8.G.A.3

Front

What is the center of rotation?

Back

The center of rotation is the fixed point around which a figure rotates.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the difference between a translation and a reflection?

Back

A translation moves a figure without changing its orientation, while a reflection flips a figure over a line.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the formula for a translation in the coordinate plane?

Back

The formula for a translation is (x, y) -> (x + a, y + b), where (a, b) is the translation vector.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the angle of rotation?

Back

The angle of rotation is the degree measure of the turn around the center of rotation.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is a line of reflection?

Back

A line of reflection is the line over which a figure is flipped to create a mirror image.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5