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```2/16/2022
Area and Perimeter of Similar Figures Study Guide
NAME :
CLASS :
Area and Perimeter of Similar Figures Study Guide
DATE :
15 Questions
1.
Find the missing side.
A
7
B
9
C
11
D
5
2.
Solve for x.
A
6
B
2
C
4
D
3
3.
A picture of a schoolâ€™s mascot is 18 in. wide and 24 in. long. It is enlarged proportionally to
banner size. If the width is enlarged to 54 in., what is the length of the banner?
A
80 in
B
60 in
C
72 in
D
62 in
4.
The scale factor from figure A to figure B is 3. How many times larger is the perimeter of B
than the perimeter of A?
A
9
B
12
C
3
D
6
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2/16/2022
Area and Perimeter of Similar Figures Study Guide
5.
The scale factor from figure A to figure B is 3. How many times larger is the area of B than
the area of A?
A
9
B
12
C
6
D
3
6.
Find the ratio (larger to smaller) of the perimeter.
A
9/14
B
81/196
C
14/9
D
196/81
7.
Find the ratio (larger to smaller) of the area.
A
81/196
B
196/81
C
14/9
D
9/14
8.
The scale factor of two similar figures is 4:5. What is the ratio of their perimeters?
A
16:25
B
4:5
C
8:10
D
64:125
9.
If the ratio of two tires is 6:9, what is the ratio of their areas?
A
24:36
B
12:18
C
6:9
D
36:81
10.
What is the area ratio of the rectangles?
A
10/7
B
4/36
C
100/49
D
100/36
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Area and Perimeter of Similar Figures Study Guide
11.
Gwen scans a photo that is 3 in. wide by 5 in. tall into her computer. If she scales the height
up to 10 in., how wide should the similar photo be?
A
6 in
B
2 in
C
16.67 in
D
1.5 in
12.
A figure is dilated by a scale factor of 3. Which of the following statements about the figure
must be true?
A
The perimeter is multiplied by 9 and the
area is multiplied by 3.
B
The perimeter and area are both divided
by 3.
C
The perimeter is multiplied by 3 and the
area is multiplied by 9.
D
The perimeter and area are both
multiplied by 3.
13.
The figures are similar. What is the ratio of their perimeters?
A
36/24
B
18/24
C
1/2
D
3/4
14.
Find the missing perimeter.
A
8
B
84
C
98
D
48
15.
Find the missing area.
A
30
B
25
C
20
D
15
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