Transformation Flashcard

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 in geometry?

Back

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

Explain reflection in geometry.

Back

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 is dilation in geometry?

Back

Dilation is a transformation that changes the size of a shape but not its shape, using a scale factor.

Tags

CCSS.8.G.A.3

Front

How do you determine the scale factor in dilation?

Back

The scale factor is determined by comparing the lengths of corresponding sides of the original shape and the dilated shape.

Tags

CCSS.8.G.A.3

Front

What is the translation rule for moving a point (x, y) to the right by 5 units?

Back

The translation rule is (x, y) ➔ (x + 5, y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

If a triangle is rotated 90 degrees clockwise about the origin, how do the coordinates change?

Back

The coordinates change from (x, y) to (y, -x).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What happens to the coordinates of a point when it is reflected across the y-axis?

Back

The coordinates change from (x, y) to (-x, y).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5