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WorksheetsUnit 3: Similarity Exam
Total questions: 35
Worksheet time: 2hrs 53mins
Name
Class
Date
1.
What is Dilation?
a)
Dilation means to enlarge or reduce
b)
Dilation means to reflect on something
c)
Dilation means to like something
d)
Dilation means to make something different by making it smaller
2.
The Pythagorean Theorem ONLY works on which triangle?
a)
obtuse
b)
scalene
c)
isosceles
d)
right
3.
Sides a and b are called legs.
a)
true
b)
false
4.
Side c on a right triangle is ALWAYS the longest.
a)
true
b)
false
5.
Definition: The figure after a transformation has occurred.
a)
Pre-image
b)
Image
c)
Translation
d)
Reflection
6.
Find the missing side
a)
9
b)
41
c)
6.4
d)
3
7.
Find the missing side
a)
29.2
b)
20
c)
400
d)
10
8.
Does the set of numbers represent a right triangle?
20, 25, 15
a)
Yes
b)
No
9.
What is the scale factor from the small shape to the big shape?
a)
1/2
b)
7/3
c)
2
d)
10/3
10.
Two objects that are the same shape but not the same size are _______.
a)
Congruent
b)
Vertical
c)
Similar
d)
Complementary
11.
What is the scale factor from the large triangle to the small triangle?
a)
1/2
b)
2/3
c)
3/4
d)
2
12.
Are the triangles similar?
a)
Yes
b)
No
13.
Are the triangles similar?
a)
Yes
b)
No
14.
Which triangles are similar to triangle A?
a)
B
b)
C
c)
Both
d)
None
15.
State the coordinate of the image of the given point B (-10,-6) under a dilation with center at the origin with the given scale factor k = 1/2.
a)
(5,3)
b)
(20,12)
c)
(-20,-12)
d)
(-5,-3)
16.
The point (8, 12) was dilated to become point (2, 3). What was the scale factor?
a)
½
b)
¼
c)
4
d)
2
17.
The point (8, 12) was dilated to become point (2, 3). What was the scale factor?
a)
½
b)
¼
c)
4
d)
2
18.
Triangle ABC is dilated using a scale factor of 1/2. What are the new coordinates of point A'?
a)
(-3, 3)
b)
(-12, 12)
c)
(-2, 2)
19.
Dilate Point B by a scale factor of 3:
a)
(12,0)
b)
(12,12)
c)
(4,3)
d)
(0,12)
20.
Find missing side
a)
5
b)
7
c)
9
d)
11
21.
Solve for X.
a)
2 ft
b)
3 ft
c)
4 ft
d)
6 ft
22.
Did the image enlarge, reduce or none of the above?
a)
Enlarge
b)
Reduce
c)
None of the above
23.
What scale factor was used to produce the image?
a)
2
b)
-2
c)
1/2
d)
1
24.
Find the measure of x:
a)
6
b)
24
c)
33
d)
36
25.
State the coordinate of the image of the given point B (-10,-6) under a dilation with center at the origin with the given scale factor k = 1/2.
a)
(5,3)
b)
(20,12)
c)
(-20,-12)
d)
(-5,-3)
26.
State the coordinate of the image of the given point B (4,9) under a dilation with center at the origin with the given scale factor r = 2.
a)
(2,4.5)
b)
(-8,-18)
c)
(8,18)
d)
(9,4)
27.
Are the triangles similar?
a)
Yes
b)
No
28.
Which of the following angles can you add together to equal angle d?
a)
Angle a and Angle b
b)
Angle b and Angle c
c)
Angle a and Angle c
d)
Angle a and Angle b and Angle c
29.
What is the measure of angle b?
a)
36o
b)
56o
c)
63o
d)
117o
30.
Find the missing side
a)
√29.2
b)
√400
c)
√20
d)
√10
31.
Find the length of the missing side.
a)
25 cm
b)
42 cm
c)
52 cm
d)
48 cm
32.
42 = ?
a)
9
b)
8
c)
16
d)
18
33.
92 = ?
a)
81
b)
4.5
c)
18
d)
72
34.
?
a)
2
b)
3
c)
4.5
d)
81
35.
Determine the length of side BD
a)
9
b)
12
c)
14
d)
20
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