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Dilations & Similar Figures

Authored by Jordan Willey

Mathematics

8th Grade

CCSS covered

Used 2+ times

Dilations & Similar Figures
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22 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Dilate the figure by a scale factor of 3 with the origin as the center of dilation. What are the coordinates of the image?
A(3,3) B(6,6) C(9,3)

A'(9,9) B'(18,18) C'(27,9)
A'(6,6) B'(9,9) C'(12,6)
A'(0,0) B'(3,3) C'(6,0)
A'(1,1) B'(2,2) C'(3,1)

Tags

CCSS.8.G.A.3

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

To find the height of a very tall pine tree, you place a mirror on the ground and stand where you can see the top of the pine tree.  How tall is the tree?

144 feet
72 feet
36 feet

Tags

CCSS.HSG.SRT.B.5

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Which side length corresponds with EF?

ML
LM
OL
EH

Tags

CCSS.HSG.SRT.A.2

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The point (8, 12) was dilated to become point (2, 3). What was the scale factor?

½
¼
4
2

Tags

CCSS.8.G.A.3

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which must be true of a scale factor of a dilation if the image is smaller that the pre-image?

The scale factor is positive

The scale factor is greater than 1

The scale factor is between 0 and 1

The scale factor is negative

Tags

CCSS.8.G.A.3

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Choose the correct scale factor:

2
3
1/3
1/2

Tags

CCSS.8.G.A.3

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Find the perimeter of the large triangle.

24
36
12
54

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