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Open Up Resources Mid-Unit 1 Test Review

Total questions: 40

Worksheet time: 40mins

Name
Class
Date
1.
Which are pairs of vertical angles?
a)
∠COB & ∠COA
b)
∠AOD & ∠AOC
c)
∠COB & ∠AOD
d)
∠BOD & ∠AOD
2.
Find the missing angle.  Find x.
a)
20o
b)
70o
c)
160o
d)
180o
3.

If m∠1 = 30°, then m∠2 =

a)

30°

b)

60°

c)

150°

d)

undetermined

4.

Identify the transformation.

a)

Reflection over the y-axis

b)

Reflection over the x-axis

c)

180 Rotation

d)

Translation 2 units down

5.

Is the picture being reflected across the y-axis or x-axis?

a)

y-axis

b)

x-axis

6.

Which answer shows a reflection across the x-axis?

a)

a (top left)

b)

b (bottom left)

c)

c (top right)

d)

d (bottom right0

7.

What happened to the shape?

a)

Rotation

b)

Reflection

c)

Translation

8.

What type of transformation is this?

a)

Rotation

b)

Reflection

c)

translation

9.

Describe the transformation from the blue triangle onto the red triangle.

a)

Translation 5 units right and 3 units down

b)

Rotation 90° clockwise about the origin (0, 0)

c)

Reflection across the y-axis

d)

Rotation 90° clockwise about point a, then a translation 4 units to the right

10.

What type of transformation is this?

a)

Rotation

b)

Reflection

c)

Translation

d)

Enlargement

11.
How is triangle ABC being translated to triangle A'B'C'?
a)
 left 8, up 3
b)
left 4, up 9
c)
right 8, down 3
d)
right 4, down 9
12.

Where would A' be if you translated A 3 units to the right and 4 units down?

a)

(-4, 4)

b)

(-1, 0)

c)

(0, -1)

d)

(2, -1)

13.

Is the first figure a rigid transformation of the second figure?

a)

Yes, they maintain side lengths and angle measures.

b)

No, because the transformation didn't maintain side lengths.

c)

No, because the figures didn't maintain angle measures.

d)

Yes, they are the same shape and size.

14.
After a figure has been transformed, we call the new figure the...
a)
Image
b)
Different shape
c)
Figure that moved
d)
Prime
15.

What sequence of transformations will get you from  ΔBCD\Delta BCD  to  ΔB"C"D"\Delta B"C"D"  ?

a)

Rotation, then rotation

b)

rotation, then dilation

c)

translation, then reflection

d)

reflection, then rotation

16.

Zach and Naomi are studying geometric transformations. Zach is able to move the triangle AA to  A′A'  using the following sequence of basic transformations:

        1. Reflection across the x-axis.
        2. Reflection across the y-axis.
        3. Translation two units to the right.
Naomi claims that the same three transformations, done in any order will always produce the same result. Zach disagrees. Who is correct?

a)

Zach

b)

Naomi

c)

Both are correct

d)

Both are incorrect

17.
Vertical angles are always
a)
acute
b)
total 180 degrees
c)
congruent (equal measures)
d)
adjacent angles
18.
What is the value of x?
a)
37
b)
72
c)
108
d)
18
19.

The image shows what type of transformation

a)

Rotation 90° counterclockwise about the origin (0, 0)

b)

Translation 2 units down

c)

Reflection across the x-axis

d)

Reflection across the y-axis

20.

What phrase could you add to the description of the rigid transformation to make it more specific?


"This is a reflection..."

a)

across the x-axis

b)

90° clockwise around the origin

c)

across the y-axis

d)

4 units to the right

21.
If you were to rotate ABCD 180°  about the origin, what would the coordinate of A' be?
a)
(-5, 5)
b)
(-3, -5)
c)
(-5, 3)
d)
(-3, 3)
22.

The center of rotation is the origin (0, 0). What is the angle of the clockwise rotation?

a)

45°

b)

90°

c)

180°

d)

270°

23.

Triangle A is rotated 270° clockwise with the origin as the center of rotation to create a new figure. Which triangle shows the new location?

a)

A

b)

B

c)

C

d)

D

24.

What type of transformation is this?

a)

Rotation

b)

Reflection

c)

Translation

d)

Enlargement

25.
Determine how to translate triangle ABC to triangle A'B'C'.
a)
left 2, up 9
b)
right 2, down 9
c)
left 2, down 9
d)
left 2, up 5
26.

This point is translated 3 right and 2 down. Which diagram shows the new position of the point?

a)
b)
c)
d)
27.
How is Quadrilateral EFGH translated to E'F'G'H'?
a)
6 down
b)
 1 right, 6 down
c)
 3 left, 6 down
d)
, 8 down,1 right
28.
Which of the following describes the sequence of transformations shown?
a)
Reflect across the x-axis and then rotate -90 degrees around the origin
b)
Rotate -90 degrees around the origin and then translate down.
c)
Reflect across the x-axis and then reflect across the y-axis.
d)
Translate up and then rotate 90 degrees about the origin.
29.

What sequence of transformations will map trapezoid A to its image A'?

a)

Reflection, then translation

b)

Rotation, then translation

c)

Reflection, then rotation

d)

Rotation, then dilation

30.

Rigid Transformations will always maintain and preserve ALL of the following EXCEPT...

a)

size and shape

b)

angle measurements

c)

location and orientation

d)

area and perimeter

e)

parallel lines

31.

What type of transformation takes quadrilateral B to quadrilateral A?

a)

Translation up and to the right

b)

Reflection across line l

c)

Rotation by 180° around the point between the two quadrilaterals

d)

Rotation by 90° clockwise around the point where A and B touch

32.

If you were to describe a translation of triangle ABC, what information would you need to include in your description? Select ALL that apply.

a)

Direction of the Translation

b)

Number of Units Moved in the Translation

c)

Line of Translation

d)

Degree of Translation

33.

If you were to describe a rotation of triangle ABC, what information would you need to include in your description? Select ALL that apply.

a)

Line of Rotation

b)

Degree Angle of Rotation

c)

Direction of Rotation

d)

Center of Rotation

34.

If you were to describe a reflection of triangle ABC, what information would you need to include in your description? Select ALL that apply.

a)

Direction of Reflection

b)

Degree of Reflection

c)

Point of Reflection

d)

Line of Reflection

35.

Name a segment whose length is the same as segment CO.

a)

Segment AO

b)

Segment B'O

c)

Segment C'O

d)

Segment A'C'

36.

What is the degree measure of angle AOC'?

(a)  

37.

Triangle ABC has be reflected across line AC to form quadrilateral ABCD. What is the length of segment CD?

a)

2.7

b)

64.3

c)

3.2

d)

5.9

38.

Triangle ABC has be reflected across line AC to form quadrilateral ABCD. What is the measure of angle CDA?

a)

2.7°

b)

64.3°

c)

3.2°

d)

25.7°

39.

Triangle ABC has been rotated 180 degrees using midpoint M as a center to form quadrilateral ABCE. What is the length of segment EC?

a)

2.7

b)

64.3

c)

3.2

d)

5.9

40.

Triangle ABC has been rotated 180 degrees using midpoint M as a center to form quadrilateral ABCE. What is the measure of angle CEA?

a)

2.7°

b)

64.3°

c)

3.2°

d)

25.7°

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