WorksheetsSimilar Triangles + Dilation Practice
Total questions: 23
Worksheet time: 1hrs 9mins
Name
Class
Date
1.
What is the measure of x?
a)
12
b)
15
c)
6
d)
9
2.
The triangles are similar, solve for the question mark.
a)
8
b)
12.5
c)
18
d)
24
3.
a)
20
b)
30
c)
25
d)
23
4.
If two figures are similar their angles are______.
a)
proportional
b)
congruent
c)
supplementary
d)
complementary
5.
If two figures are similar, the corresponding sides are ______________.
a)
equal
b)
congruent
c)
proportional
d)
none of these
6.
Are the triangles similar?
a)
Yes
b)
No
7.
Are the triangles similar?
a)
Yes
b)
No
8.
Which triangles are similar to triangle A?
a)
B
b)
C
c)
Both
d)
None
9.
What does it mean for two shapes to be similar?
a)
Their angles add up to 180o.
b)
They are congruent.
c)
Same shape, but different size.
d)
Same size and same shape.
10.
Find side length X.
a)
16
b)
18
c)
2.4
d)
15
11.
Find side length X.
a)
30
b)
25
c)
15
d)
40
12.
Find the value of x.
a)
10
b)
35
c)
8
d)
None of these
13.
Find the value of X.
a)
4
b)
6
c)
12
d)
7
14.
a)
7
b)
12
c)
6
d)
4
15.
A dilation is which of the following:
a)
An enlargement
b)
A reduction
c)
Either an enlargement or a reduction
d)
Neither an enlargement or a reduction
16.
If the scale factor is less than one, the new figure will be
a)
an enlargement
b)
a reduction
c)
a scale factor
d)
bigger
17.
If the scale factor is greater than one, the new figure will be
a)
a reduction
b)
an enlargement
c)
a scale
d)
not proportional
18.
Dilate Point B by a scale factor of 1/2
a)
(1.5,-4)
b)
(-1.5,1)
c)
(-1,-1.5)
d)
(-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.
The point (8, 12) was dilated to become point (2, 3). What was the scale factor?
a)
½
b)
¼
c)
4
d)
2
21.
Choose the correct scale factor:
a)
2
b)
3
c)
1/3
d)
1/2
22.
Choose the correct scale factor:
a)
2.5
b)
1.5
c)
3.5
d)
4
23.
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)
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