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WorksheetsDilations
Total questions: 18
Worksheet time: 33mins
Name
Class
Date
1.
Choose the correct scale factor:
a)
2
b)
3
c)
1/3
d)
1/2
2.
The point A (8, 12) was dilated to become point A' (2, 3). What was the scale factor?
a)
½
b)
¼
c)
4
d)
2
3.
A dilation is which of the following:
a)
only an enlargement
b)
only a reduction
c)
Either an enlargement or a reduction
d)
Neither an enlargement or a reduction
4.
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 of 2.
a)
B' (2 , 4.5)
b)
B' (-8 ,-18)
c)
B' (8 ,18)
d)
B' (9 ,4)
5.
When A(3, 6) is under a dilation of 2 what are the coordinates of A'?
a)
(3, 6)
b)
(1.5, 3)
c)
(6, 12)
d)
(12, 6)
6.
A dilation produces a congruent figure
a)
True
b)
False
7.
When a dilation has a scale factor greater than one, the dilation is an enlargement.
a)
True
b)
False
8.
When the scale factor of a dilation is less than one, the dilation is a reduction.
a)
True
b)
False
9.
In a dilation what mathematical operation is used with the scale factor?
a)
addition
b)
subtraction
c)
multiplication
d)
division
10.
The __________ is the ratio of a length of the new figure to the corresponding length on the original figure.
a)
reduction
b)
enlargement
c)
scale factor
d)
center of dilation
11.
State the coordinate of the image of the given point G (-10,-6) under a dilation with center at the origin with the given scale factor of 1/2.
a)
G' (5,3)
b)
G' (20,12)
c)
G' (-20,-12)
d)
G' (-5,-3)
12.
Similar figures have the same ______ but different ______.
a)
measure; shapes
b)
sizes; shapes
c)
value; measures
d)
shape; sizes
13.
What is the scale factor from ABCD to MNOP?
a)
2/3
b)
3/2
c)
2
d)
3
14.
If your SF = 0.8, what type of dilation is it?
a)
Reduction
b)
Enlargement
15.
If your SF = 2.5, what type of dilation is it?
a)
Reduction
b)
Enlargement
16.
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)
17.
What scale factor was used to produce the image?
a)
1
b)
7
c)
18
d)
49
18.
The red triangle has been dilated by a scale factor of 1/4 about the origin, which triangle is it's new image?
a)
green triangle
b)
red triangle
c)
black triangle
d)
none of these
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