Dilations and Measurements

What is the scale factor that dilated ABC to A'B'C' ?

• 2

• 3

• 4

• 6

Answer explanation

Each point on ABC was multiplied by SF of 3 to move to that circle!

Tags

CCSS.8.G.A.3

When you are given a side length of a shape, you would ​ (a)   by the scale factor to find the NEW side length of the image shape.

• multiply

• divide

• add

• subtract

Tags

CCSS.7.G.A.1

Given the following triangles ARE SIMILAR. Label the missing measurements.

e

f

8

5

7.5

11

6

4

Tags

CCSS.HSG.SRT.A.2

Which rule would dilate shows a scale factor of 4

• (x, y) → (y, x)

• (x, y) → (x + 4, y + 4)

• (x, y) → (x, -y)

• (x, y) → (4x, 4y)

Tags

CCSS.HSG.CO.A.2

Which rule would dilate shows a scale factor of 4

• (x, y) → (y, x)

• (x, y) → (x + 4, y + 4)

• (x, y) → (x, -y)

• (x, y) → (4x, 4y)

Tags

CCSS.HSG.CO.A.2

If the scale factor is greater than 1, the dilation is (a)  

• an enlargement

• a rotation

• a translation

• a reduction

Tags

CCSS.8.G.A.3

What is the scale factor for the dilation that takes quadrilateral ABCD to A'B'C'D'?

• 1/2

• 2

• 1/3

• 3

Tags

CCSS.8.G.A.3

• F

• G

• H

• J

Tags

CCSS.HSG.CO.A.2

What will the perimeter of J’K’L’M’ be after a dilation with a scale factor of 3.5?

• 22 units

• 77 units

• 38.5 units

• 6.3 units

Tags

CCSS.7.G.A.1

a transformation that ​changes the size (enlargement or reduction) of a figure is called a ​ ​ ​ (a)  

• dilation

• rotation

• reflection

• translation

Tags

CCSS.8.G.A.3