Scale factor and dilations

Front

What is the scale factor?

Back

The scale factor is a number that describes how much a figure is enlarged or reduced during a dilation.

Tags

CCSS.8.G.A.3

Front

Definition: The figure after a transformation has occurred.

Back

Image

Tags

CCSS.HSG.CO.A.2

Front

Which of the following algebraic representations represents a dilation? (x,y) → (x + k, y + k), (x,y) → (x/k, y/k), (x,y) → (kx, ky)

Back

(x,y) → (kx, ky)

Tags

CCSS.8.G.A.3

Front

_________ ________ is the number you multiply by the sides to create a similar figure.

Back

Scale Factor

Tags

CCSS.7.G.A.1

Front

If the scale factor is greater than one, the new figure will be

Back

an enlargement.

Tags

CCSS.8.G.A.3

Front

If the scale factor is less than one, the new figure will be

Back

a reduction.

Tags

CCSS.8.G.A.3

Front

What does a scale factor of 1 indicate?

Back

A scale factor of 1 indicates that the figure remains the same size after the transformation.

Tags

CCSS.8.G.A.3

Front

What is the relationship between corresponding sides of similar figures?

Back

The ratios of the lengths of corresponding sides of similar figures are equal to the scale factor.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Front

What is a dilation in geometry?

Back

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

Tags

CCSS.8.G.A.3

Front

How do you find the scale factor between two similar figures?

Back

Divide the length of a side of the new figure by the length of the corresponding side of the original figure.

Tags

CCSS.7.G.A.1