Name: 
 

Math 9 LG 13 Practice Quiz #4



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

A scale factor greater than 1 indicates
a.
that the image is an enlargement of the actual object
b.
that the image is a reduction of the actual object
c.
that the image is the same size as the actual object
d.
that the image is a different shape than the actual object
 

 2. 

In the drawings shown, the scale factor of Figure B compared to Figure A is

mc002-1.jpg
a.
1.5
c.
2.5
b.
2
d.
3
 

 3. 

Determine the scale factor used to draw Figure A from Figure B.

mc003-1.jpg
a.
0.20
c.
0.30
b.
0.25
d.
0.33
 

 4. 

What scale factor is used to enlarge the letter on the left?

mc004-1.jpg
a.
1.0
c.
3.0
b.
2.0
d.
4.0
 

 5. 

The scale factor used to draw the letter on the right is

mc005-1.jpg
a.
equal to 0
c.
greater than 1
b.
equal to 1
d.
less than 1
 

 6. 

An image with a scale of 8:1 means
a.
there are 8 units of the actual object for every unit of the image
b.
there is 1 unit of the actual object for 8 units of the image
c.
there are 8 units of the image for every unit of actual size
d.
there is 1 unit of the image for every 8 units of actual size
 

 7. 

A scale diagram of two flower pots is shown below. If the flower pot on the left has a base with a diameter of 9 cm, what is the approximate diameter of the base of the flower pot on the right?

mc007-1.jpg
a.
3.0 cm
c.
4.0 cm
b.
3.6 cm
d.
5.4 cm
 

 8. 

A calculator is 12 cm long. The length of the calculator on a poster advertisement is 32 cm. What is the scale used to create the poster?
a.
3:6
c.
6:8
b.
3:8
d.
6:3
 

 9. 

The image of a cell phone on a poster is 46 cm long. The actual cell phone is 11.5 cm long. Determine the scale used to create the poster.
a.
mc009-1.jpg
c.
mc009-3.jpg
b.
mc009-2.jpg
d.
mc009-4.jpg
 

 10. 

Joe is making a technical drawing of his laptop. The laptop screen is 35.56 cm wide. If Joe’s drawing must use a scale of 1:3, how wide will the laptop screen appear on the drawing?
a.
3.00 cm
c.
35.56 cm
b.
11.85 cm
d.
106.68 cm
 

Short Answer
 
 
Write your answer in the space provided.
 

 11. 

Use the grid provided to draw an enlargement of the letter using a scale factor of 6.

sa011-1.jpg
 

 12. 

The scale diagram of a basketball court uses a scale of 1:280. The length of the court measures 10 cm in the diagram. What is the actual length of the court, in metres?
 

Problem
 

 13. 

A scale diagram of a bicycle wheel is shown below. The diameter, d, of the wheel in the drawing is 9.6 cm. The thickness of the wheel, t, in the drawing is 0.8 cm. If the actual thickness of the wheel is 5.2 cm, calculate the diameter of the wheel. Round all answers to the closest hundredth.

pr013-1.jpg
 
 
Write your answer in the space provided.
 

 14. 

Use the grid provided to create a drawing of the letter below using a scale factor of 0.25. State whether your drawing is an enlargement or a reduction.

pr014-1.jpg
 



 
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