6th Grade Math Textbook, Progress

Scale Drawings and Maps

11-9

A scale drawing is a drawing of a real

object but is smaller than (a reduction of)

or larger than (an enlargement of) the

object. Measurements on a scale drawing

are proportional to measurements of the

real object.

A scale is a ratio of the scale drawing to

the actual measure. The scale 1 in. 
32 ft

on this drawing of a tennis court means

that 1 in. on the drawing represents 32 ft

on the actual tennis court.



3

1

2

in

f

.

t



The scale length of the tennis court is 2 176 in.

What is the actual length of the tennis court?

To find the actual length of the tennis court, n, write

a proportion and use the cross products to solve.



A

S

c

c

t

a

u

l

a

e

l

m

m

e

e

a

a

s

s

u

u

r

r

e

e




A

S

c

c

t

a

u

l

a

e

l

l

l

e

e

n

n

g

g

t

t

h

h





3

1

2


^1 n
^32 ^2  1

7

6  n


3

1

(^2) 

3
1
9
6 
^78
The actual length of the tennis court is 78 feet.
2  176 

n
measure in drawing

actual measuremmi
Scale: 1 in.
32 ft
Copy and complete the table. Use the scale: 1 in.
10 ft.

1. 
   


2. 
   


3. 
   

   Rooms Scale Length Scale Width Actual Length Actual Width
   Dining Room 1 ^12 in. 1 in.??
   Kitchen 1 ^14 in. ^34 in.??
   Living Room 2 in. 1 ^34 in.??
   2
   1
   
   0
   3
   1
   2
   in
   ft
   .
   
   
   2  176 in.
   
   nft
   1.3
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