WorksheetsDILATIONS UNIT QUIZ
Total questions: 20
Worksheet time: 57mins
Name
Class
Date
1.
Scale Factor of ½ is __________________ .
a)
Reduction
b)
Enlargement
2.
Scale Factor of 5 is _________________ .
a)
Reduction
b)
Enlargement
3.
Choose the correct scale factor:
a)
2
b)
3
c)
1/3
d)
1/2
4.
Dilate the figure by a scale factor of 3 with the origin as the center of dilation. What are the coordinates of the image?
A(3,3) B(6,6) C(9,3)
A(3,3) B(6,6) C(9,3)
a)
A'(9,9) B'(18,18) C'(27,9)
b)
A'(6,6) B'(9,9) C'(12,6)
c)
A'(0,0) B'(3,3) C'(6,0)
d)
A'(1,1) B'(2,2) C'(3,1)
5.
The point (8, 12) was dilated to become point (2, 3). What was the scale factor?
a)
½
b)
¼
c)
4
d)
2
6.
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
7.
A dilation produces a similar figure
a)
True
b)
False
8.
A dilation produces a congruent figure
a)
True
b)
False
9.
Does the image show a Dilation?
a)
Yes
b)
No
10.
What are the coordinates if the figure is dilated by 2?
a)
A'(1,2); B'(2,3); and C'(3,1)
b)
A'(2,4); B'(4,6); and C'(6,2)
c)
A'(2,8); B'(4,12); and C'(6,4)
d)
A'(4,8); B'(8,12); and C'(12,4)
11.
In a dilation what mathematical operation is used with the scale factor?
a)
addition
b)
subtraction
c)
multiplication
d)
division
12.
Did the image enlarge, reduce or none of the above?
a)
Enlarge
b)
Reduce
c)
None of the above
13.
Choose the correct scale factor:
a)
2
b)
3
c)
1/3
d)
1/2
14.
Similar figures have the same ______ but different ______.
a)
measure; shapes
b)
sizes; shapes
c)
value; measures
d)
shape; sizes
15.
A triangle has vertices with coordinates (2,0), (3, -1) and (-2,-5). If the triangle is dilated by a scale factor of 3 with the origin as the center of dilation, what are the coordinates of the vertices of the image?
a)
(5,3), (6,2), (1,-2)
b)
(6,0), (9,-3), (-6,-15)
c)
(2/3,0), (1,-1/3), (-2/3,-5/3)
d)
(-1,-3), (0,-4), (-5,-8)
16.
Triangle ABC will be dilated by a scale factor of 1/2. What will be the coordinates of C'?
a)
(-1, -2.5)
b)
(12, 6)
c)
(3, -1.5)
d)
(0, 1.5)
17.
Enlargement or reduction? Find the scale factor!
a)
It's an enlargement; the scale factor is 1/2.
b)
It's an enlargement; the scale factor is 2.
c)
It's a reduction; the scale factor is 1/2.
d)
It's a reduction; the scale factor is 2.
18.
Rectangle ABCD is dilated so that the coordinates of C' are (2, -1). What could be the dilation rule?
a)
(-2x, +1y)
b)
(1/2 x, 1/2 y)
c)
(2x, 2y)
d)
(x - 2, y - 1)
19.
Triangle ABC will be dilated using the rule (x, y)→(2x, 2y). What will be the coordinates of C'?
a)
(12, -3)
b)
(12, -6)
c)
(3, -1.5)
d)
(8, -5)
20.
Enlargement or reduction? Find the scale factor!
a)
It's an enlargement; the scale factor is 3.
b)
It's a reduction; the scale factor is 1/3.
c)
It's a reduction; the scale factor is 1/2.
d)
It's an enlargement; the scale factor is 2.
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