Practice Page

Directions: The following questions pertain to scale drawings. Read carefully and choose the best answer.

1.
Peppermint Patty's owners had their favorite smaller photo of her enlarged as shown at the right. The scale ratio of the framed photos is
         patratio
What is the scale factor of this enlargement?
pepperPat
Choose:
 
f4
f1
f3
f2

 

2.
In this father-daughter photo, the daughter's height is 3.0 cm and the father's height is 5.8 cm. If the father is actually 188 cm tall, how tall is the daughter, to the nearest tenth of a cm.
fatherpic
 
Choose:
 
74.6 cm
97.2 cm
 
94.0 cm
101.2 cm
 

 

3.
Mercury is the smallest of the eight planets in our solar system. The radius of Mercury is approximately 2425 km. If a scale model is created comparing the radius of Mercury as 50 millimeters to the radius of our Moon as 36 millimeters, what is the approximate radius of our Moon?
Choose:
 
1213 km
1584 km
 
1746 km
3368 km
mercury
Mercury: Photo courtesy of NASA.


4.
A 9 inch grid drawing of a snail bug is to be enlarged to a 4.5 foot grid drawing for a billboard.
Which of the following choices represents the scale factor of this enlargement?

Choose:
 
f1
f2
f3
f4
scaleBuglabeled

 

5.
A textbook shows a scale drawing of a jelly fish with its body parts labeled. The scale drawing is 4 cm in bell (vertical) height. If this drawing was based upon a jelly fish with a bell height of 1 meter, the scale ratio is
1 cm = _____ m.
jelly fish
Fill in the blank.
Choose:
 
1 cm = ¼ m
1 cm = ½ m
 
1 cm = ¾ m
1 cm = 4 m

 

6.
A treasure map shows a metric scale of 1 cm = 3 m. The distance from the starting pyramids on the map, to the location of the buried treasure marked X, is 1872 cm. When you start the trek from the pyramids to the buried treasure, how many miles, to the nearest tenth of a mile, will you have to walk?

map
 
Choose:
 
5.6 miles
4.7 miles
3.9 miles
3.5 miles

 

7.
Kevin is 6 feet tall.
a) If 1 inch = 2.54 centimeters, how tall is Kevin, to the nearest centimeter?
Choose:
 
15 cm
30 cm
 
183 cm
232 cm

b) If the ratio of Alana's height to Kevin's height is 7 to 8, how tall is Alana?
Choose:
 
5 ft
5¼ ft
 
5½ ft
5¾ ft

c) A statue with a scale factor of ½ is made to represent these two as shown at the right.
What is Alana's height in the statue, to the nearest centimeter?
Choose:
 
13 cm
24 cm
 
76 cm
80 cm
kevin

 

8.
The architectural plans for a new house show the dimensions of the rectangular kitchen to be in a scale ratio of 1 cm to 1 yard. If the measurements on the plans show a kitchen 8cm by 10 cm, what will be the area in square feet of the actual kitchen?
houseplan
 
Choose:
 
80 sq.ft.
180 sq.ft.
360 sq.ft.
720 sq.ft.

 

9.
Kalil produces a drawing of the vegetable garden he wants to plant. He places the heads of lettuce ½ in. apart to represent a spacing of 2 feet between the heads.
vegegarden
a) Which statement is the scale ratio for his drawing?
Choose:
 
g1
g2
g33
g4
 
b) Which statement is the scale factor for his drawing?
Choose:
 
148
124
112
121

 

10.
Figure B is a reduction of figure A. The scale factor, expressed as a percentage, is 75%. If the total width of figure A is 12 inches, what is the total width of figure B?
Choose:
 
3 in.
6 in.
 
8 in.
9 in.
yellow



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