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Total questions: 23
Worksheet time: 57mins
Name
Class
Date
1.
How does a dilation change the angles of a polygon?
a)
It changes by the scale factor.
b)
Dilations do not change the angles.
c)
It is impossible to answer this question. The angles change unpredictably.
d)
The angles all change to larger angles.
2.
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?
a)
144 feet
b)
72 feet
c)
36 feet
3.
Complete each proportion.
AB / BM = ? / CD
AB / BM = ? / CD
a)
BC
b)
AC
c)
MD
d)
MC
4.
What is the value of X?
a)
X=4
b)
X=6
c)
X=3
d)
X=2
5.
Solve for X.
a)
2 ft
b)
3 ft
c)
4 ft
d)
6 ft
6.
Are the triangles similar?
a)
Yes
b)
No
7.
Are the triangles similar?
a)
Yes
b)
No
8.
Similarity Ratio: _
a)
2/3
b)
1/2
c)
2
d)
3
9.
When you dilate a figure you...
a)
slide it.
b)
turn it.
c)
flip it.
d)
make it larger or smaller.
10.
All corresponding angles are congruent in similar figures.
a)
True
b)
False
11.
All corresponding sides are proportional (same ratio) in similar figures.
a)
True
b)
False
12.
The pair of figures is similar. Find the missing side.
a)
x = 9
b)
x = 28
c)
x = 7
d)
x = 63
13.
If the triangles are similar, find x
a)
90
b)
60
c)
30
d)
15
14.
What is the value of X?
a)
X=4
b)
X=6
c)
X=3
d)
X=2
15.
Tell whether the two figures are congruent.
a)
Yes, same size and same shape
b)
No, same shape but different sizes
c)
No, different size and different shapes
16.
Tell whether the two figures are congruent.
a)
Yes, same size and same shape
b)
No, same shape but different sizes
c)
No, different size and different shapes
17.
The polygons are similar. Find x.
a)
x = 2
b)
x = 6
c)
x = 4
d)
x = 8
18.
x=
a)
3
b)
1.5
c)
8
d)
2/3
19.
Matching sides are called
a)
Corresponding Sides
b)
Corresponding Angles
c)
The Same
d)
Congruent Sides
20.
Find x
a)
21
b)
27/7
c)
13
d)
18
21.
The figures are similar. Find x:
a)
6
b)
8
c)
12.5
d)
24
22.
a)
11.5
b)
14.5
c)
25.3
d)
37.1
23.
What is the value of X and Y ?
a)
X=2.5 and Y=6.5
b)
X=6.5 and Y=2.5
c)
X=3 and Y=7
d)
X=2 and Y= 5
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