(c1)2013 trimester2 test # 1 8th grade

7/29/2019 (C1)2013 Trimester2 Test # 1 8th Grade

1/13

Objectives

Transformations.

Rotations.

Translations.

Reflections.

Dilations.

1

General Review 2013 Trimester2 Test # 1 8th Grade

____ 1 What word contains only letters with line symmetry?

A W H O M B W A Y S C H A L L D M A L L

____ 2

Figure A has been translated to obtain Figure Al by using a vector with the following

coordinates:

A (6;2) B (-6;2) C (3;-1) D (1;-3)

____ 3 We perform a dilation with scale factor 8 to a square of side 7 cm. Whats the perimeter

of the image obtained?

A 218 cm B 224 cm C 225 cm D 223 cm

____ 4 We perform a dilation with scale factor 11 to a square of side 10 cm. Whats the area ofthe image obtained?

A 12103 cm2

B 12091 cm2

C 12093 cm2

D 12100 cm2

____ 5 To perform a transformation you are given a center, an angle and a direction (clockwise).

What transformation are we talking about?

A Rotation. B Translation. C Dilation. D Reflection.

____ 6 We dilate a square with1625

cm2

area and the image is another square with an area of 16

cm2. Whats the scale factor?

A 18 B 1 C 6 D 5


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Name: ________________________ ID: A

2

____ 7 Square ABCD has been transformed onto square A lBlC lD l by dilation center O and scale

factor 2. If area of ABCD is 1m2, whats the area of A

lBlC lD l?

A 10 m2

B 2 m2

C 4 m2

D 16 m2

____ 8 We dilate a square with169

400cm

2area and the image is another square with an area of

3489400


A 6 B 13 C 9 D 7

____ 9 We dilate a square with 164225

cm2

area and the image is another square with an area of

12849


A 10 B 4 C 7 D 1

____ 10 Identify the transformation from F to Fl:

A A rotation 900

clockwise about O

B A translation by vector (3,1)

C A reflectionD A rotation 90

0counterclockwise about O.

____ 11 To perform a transformation you are given a center, and a scale factor. What

transformation are we talking about?

A Rotation. B Dilation. C Reflection. D Translation.


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Name: ________________________ ID: A

3

____ 12 We dilate a square with 279

cm2

area and the image is another square with an area of 100


A 6 B 3 C 10 D 14

Short Answer

13 Find the image of parallelogram HGBM by rotation 90o

about the origin.

14 Find the coordinates of the translation that maps GFH onto GlF

lH

l.


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Name: ________________________ ID: A

4

15 Translate by means of the drawn vector EF

:

16 Draw the line of symmetry for this reflection:

17 Find the coordinates of the translation that maps BEH onto BlE

lH

l.


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Name: ________________________ ID: A

5

18 Find the image of GDH by dilation center in the origin and scale factor12

.


6/13

Name: ________________________ ID: A

6

19 Find the image of FAB by dilation center in the origin and scale factor 12

.

20 Draw the image of the triangle by dilation with scale factor 2 and center A.


7/13

Name: ________________________ ID: A

7

21 Find the image of parallelogram ADFN by rotation 90o

about the origin.

22 Find the coordinates of the translation that maps AGF onto AlG

lF

l.


8/13

ID: A

1

General Review 2013 Trimester2 Test # 1 8th Grade

Answer Section

MULTIPLE CHOICE

1 ANS: A PTS: 1

2 ANS: C PTS: 1

3 ANS: B PTS: 1

4 ANS: D PTS: 1

5 ANS: A PTS: 1

6 ANS: D PTS: 1

7 ANS: C PTS: 1

8 ANS: C PTS: 1

9 ANS: A PTS: 1

10 ANS: C PTS: 1

11 ANS: B PTS: 1

12 ANS: A PTS: 1


9/13

ID: A

2

SHORT ANSWER

13 ANS:

PTS: 1

14 ANS:

t

2;3

PTS: 1


10/13

ID: A

3

15 ANS:

PTS: 1

16 ANS:

Graphic

PTS: 1

17 ANS:

t

3; 4

PTS: 1


11/13

ID: A

4

18 ANS:

PTS: 1


12/13

ID: A

5

19 ANS:

PTS: 1 20 ANS:

Graphic

PTS: 1


13/13

ID: A

6

21 ANS:

PTS: 1

22 ANS:

t

3; 3

PTS: 1

(c1)2013 trimester2 test # 1 8th grade

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