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Review for Assessment 8.G.A

Total questions: 40

Worksheet time: 57mins

Name
Class
Date
1.

_________ means same shape, different size.

a)

similar

b)

congruent

2.

_________ means same shape, same size.

a)

similar

b)

congruent

3.

Which shows figures that are similar ?

a)
b)
4.

Which shows figures that are congruent?

a)
b)
5.

What is the scale factor?

a)

r = 3

b)

r = 1/3

6.

After a dilation, the _________ change.

a)

side-lengths

b)

angle measures

7.

Which triangle is the original (or pre-image)?

a)

The purple triangle

b)

The blue triangle

8.

Which dilation shows an enlargement?

a)
b)
9.

Which shows a dilation?

a)
b)
c)
d)
10.

Angle A is 40 degrees. What will the measure of Angle A' be?

a)

40 degrees

b)

20 degrees

11.

Point C (2, 10) is dilated a scale factor of 6. What will C' be?

a)

(12, 60)

b)

(8, 16)

12.

____________ is what the original figure is multiplied by to become the new figure.

a)

Scale Factor

b)

Reduction

c)

Translation

d)

Side-length

13.

Which shows a reflection?

a)
b)
c)
d)
14.

Which shows a translation?

a)
b)
c)
d)
15.

What rigid transformation is pictured?

a)

a rotation

b)

a translation

c)

a reflection

d)

a dilation

16.

If the triangle is reflected across the x-axis, the image will be in quadrant...

a)

2

b)

3

c)

4

d)

1

17.

Which shows an arrow turning COUNTERCLOCKWISE?

a)
b)
18.

If the triangle is reflected across the y-axis, the image will be in quadrant...

a)

2

b)

3

c)

4

d)

1

19.
Identify the transformation from C to D.
a)
90o Clockwise Rotation
b)
180o Rotation
c)
270o Clockwise Rotation
d)
360o Rotation
20.
Identify the transformation from ABC to A'B'C'.
a)
90o clockwise rotation
b)
90o counter clockwise rotation
c)
Reflection across the y-axis
d)
Reflection across the x-axis
21.
Identify the transformation.
a)
Reflection across y-axis
b)
90 Rotation counter clockwise
c)
Translation 5 units left, 1 unit up.
d)
Translation 5 units right, 1 unit down
22.
Translation are always _______
a)
Congruent
b)
Bigger
c)
Smaller
d)
Rotated
23.

What is the sequence of transformations for the image given?

a)

Reflect over the x-axis, translate right 8

b)

Reflect over the x-axis then translate right 6

c)

Reflect over the y-axis then right 1 and up 1

d)

Translate down 4 and to the right 5

24.
The algebraic notation above shows what type of transformation?
a)
reflection across the y-axis
b)
reflection across the x-axis
c)
translation
d)
clockwise rotation
25.
The algebraic notation above shows what type of transformation?
a)
90 degree rotation clockwise
b)
reflection across the x-axis
c)
180 degree rotation
d)
90 degree rotation counterclockwise
26.
Point (-5,2) is reflected over the y axis.  Where is the new point located?
a)
(5,2)
b)
(-5,-2)
c)
(-5,2)
d)
(5,-2)
27.

Translations, dilations, reflections and rotations are all known as ________________________.

a)

Geometry

b)

Transformations

c)

Congruent

28.
Reflect Point C over the y-axis:
a)
(-3, 2)
b)
(3,2)
c)
(-2,3)
d)
(3,0)
29.
Which transformation is not a rigid transformation?
a)
Translation
b)
Reflection
c)
Rotation
d)
Dilation
30.

C(-6, 2) and B(-1, -1)

Rotate 90 degrees counterclockwise about the origin.

a)

C' (-6, 2), B' (-1, -1)

b)

C' (6, 2), B' (1, -1)

c)

C' (2, -6), B' (-1, -1)

d)

C' (-2, -6), B' (1, -1)

31.

A(-2, 2) and B(3, 2)

Dilate by a scale factor or 2 with the origin as the center of dilation.

a)

A' (-2, 2), B' (3, 2)

b)

A' (-4, 4), B' (6, 4)

c)

A' (2, -2), B' (-3, -2)

d)

A' (2, -2), B' (2, 3)

32.
An office supply store sells index cards in two different sizes. The large size is an enlargement of the small size. Both sizes are shown. Find the scale factor of the enlargement.
a)
2
b)
3
c)
4
d)
5
33.
All angles in similar figures are congruent.  
a)
True
b)
False
34.
What Transformation is visible?
a)
Reflection
b)
Rotation
c)
Dilation
d)
Translation
35.
If the scale factor is 4, what is the measurement of x?
a)
20 m
b)
24 m
c)
16 m
d)
4 m
36.
What is the scale factor from triangle ABC to triangle DEF?
a)
1/2
b)
7/3
c)
2/1
d)
10/3
37.
What is the scale factor from ABCD to MNOP?
a)
2/3
b)
3/2
c)
2
d)
3
38.

Which series of transformations were performed in the figure?

a)

Translation 5 units down, reflection over the y-axis

b)

Reflection over the x-axis, translation 6 units right

c)

Rotation 90o clockwise, reflection over the x-axis

d)

Rotation 180o clockwise, reflection over the y-axis

39.
Which of the statements is true about the graphed triangles?
a)
They are similar, because one can be obtained by dilating the other about the origin with a scale factor of 2.
b)
They are similar, because one can be obtained by dilating the other about the origin with a scale factor of 1/2.
c)
They are not similar, because one can be obtained by dilating the other about the origin with a scale factor of 2.
d)
They are not similar, because one can be obtained by dilating the other about the origin with a scale factor of 1/2.
40.
Rectangle ABCD is undergoing a series of transformations. Which of the following transformations will NOT cause the resulting rectangle  to maintain congruence with rectangle ABCD? 
a)
Translation 3 units left, then translation 7 units down. 
b)
Dilation by a scale factor of 3, then dilation by a scale factor of 3.
c)
Dilation by a scale factor of 2, then dilation by a scale factor of 1/2.
d)
Translation 4 units right, then translation 6 units up. 

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