name: date: sheet # 02 - 19 ratios and proportions scaled ... · 8 inches wide using a photocopier....
TRANSCRIPT
Name: ____________________________ Date: ________
Ratios and Proportions – Scaled Drawings Practice PreAlgebra
1 What is the actual height of the building at its
tallest point?
A 1.4 m C 11.2 m
B 9.6 m D 22.4 m
2 The height of the scale drawing of a floor lamp
shown below is 8 centimeters.
Scale: 2 cm = 1 ½ ft
What is the height
of the actual floor
lamp?
A 4 ½ ft
B 6 ft
C 10 3
2ft
D 12 feet
3 Mario reduced a picture that is 10 inches long by
8 inches wide using a photocopier. The reduced
picture is now 6 inches long. By what scale factor
did the photocopier reduce the picture?
A 5
3
B 4
3
C 3
4
D 3
5
4 A model airplane is built to the scale 1 inch = 5
feet. If the model has a wingspan of 8.4 inches,
what is the actual wingspan of the plane?
A 42 in.
B 17 ft
C 42 ft
D 420 ft
5 The diagram shown on the coordinate grid below
is a scale drawing of the side of Jessica’s house.
The scale unit is 1 unit = 4 feet.
Which of the following shows the side of Jessica’s
house drawn with a scale of 1 unit = 8 feet?
Sheet # 02 - 19
6 Beth drew a scale drawing of a sailboat. What is
the actual height of the sail? [Measure the drawing
to the nearest 8
1inch]
A 8
15 ft C
8
115 ft
B 8
510 ft D
9
222 ft
7 The model of a boxcar is 2
112 inches long. The
actual boxcar is 50 feet long. What scale was used
to make the model?
A 4 in = 1 ft
B 1 in = 6.25 ft
C 2
1in = 5 ft
D 1 in. = 4 ft
8 What are the actual dimensions of the study area?
A 5 m × 3 m
B 35 m × 20 m
C 10 m × 20 m
D 2 m × 7 m
9 A photograph of a painting measures 13 units by
17 units. If the scale factor is3
1, what is the actual
size of the painting?
A 26 × 34
B 39 × 51
C 4.3 × 5.7
D 169 ×289
10 On a scale drawing with a scale of80
1, the height
of a building is 9.75 inches. How tall is the actual
building?
A 65 feet
B 80 feet
C 780 feet
D 9,360 feet
11 A model of a shopping mall shows an entrance
that is 75 cm wide. The actual entrance is 3,750
meters wide. Based on the scale drawing, what is
the real-world value of 1 cm in meters?
Answer ___________
12 You are working as an assistant to a photographer.
The photographer has asked you to answer the
following question.
A customer brought in a photograph that is 5
inches wide by 7 inches high. The customer wants
the photograph enlarged to a photograph that is 15
inches wide and 20 inches high.
Explain why this cannot be done without cropping
the picture.
Name: ____________________________ Date: ________
Ratios and Proportions – Scaled Drawings Practice PreAlgebra
13 A floor plan for a new home is shown above
where ½ inch represents 3 feet in the actual home.
Part A If the contractor is going to put up crown molding
around the kitchen, how many feet of crown molding will
he buy?
Show your work.
Answer ___________ feet
Part B The contractor needs to order the floor tiles for the
kitchen. How many square feet of tiling should he order?
Show your work.
Answer ___________ square feet
Part C How many square feet of flooring will be needed
for the hallway?
Show your work.
Answer ___________ square feet
Part D The buyer of the home has requested bamboo
flooring for the hallway. If the bamboo wood planks are
sold at $2.19 per square foot, how much will it cost for the
flooring in the hallway?
Show your work.
Answer $___________
14 Ms Bisal is redecorating her room. She measured
the room to be 18’ × 12’.
She used the scale 1 unit = 2 feet to create a scaled
drawing of her room on the grid below.
Part A Ms. Bisal wrote down the dimensions of some furniture
she would like to place in the room. Draw these items onto Ms.
Bisal’s scale drawing to show her where these items will fit.
Loveseat: 6’ × 3’
Bookcase: 7’ × 2’
Desk: 4’ × 2’
Part B Ms. Bisal drew her television stand onto the scale
drawing. The dimensions on the drawing were 3 units by .75
units. What are the actual dimensions of the television stand?
Show your work.
Answer ________ft by ________ft
Sheet # 02 - 20
15 Measure the dimensions of a room in your home and at least 3 objects in the room. Create a scale drawing of this
room on the grid below.
Scale: 1 unit = ______ feet
Object 1: __________________ dimensions: _________________
Object 2: __________________ dimensions: _________________
Object 3: __________________ dimensions: _________________
Object 4: __________________ dimensions: _________________
Object 5: __________________ dimensions: _________________
This Page is extra credit!!! The more detailed your scale drawing the better.
Print an actual photo of the room to go along with the scale drawing.