Splash Screen

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Splash Screen
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5-Minute Check 1
Over Lesson 6-6
STATUES The statue of Zeus at Olympia is one of
the Seven Wonders of the World. On a scale model
of the statue, the height of Zeus is 8 inches. If
the actual height of the statue is 40 feet, what
is the scale?
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Then/Now
You have already written and solved proportions.
(Lesson 65)

• Use scale drawings.

• Construct scale drawings.

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Vocabulary

• scale factor the ratio of a length on a scale
  drawing or model to the corresponding length on
  the real object in the same unit of measure
• Example A scale model has a scale of 1 inch
  2 feet.

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Example 2
Find Actual Measurements
MAP A map has a scale of 1 inch 8 miles. Two
towns are 3.25 inches apart on the map. What is
the actual distance between the two towns?
Method 1 Use a proportion.
Let x represent the actual distance between the
two towns. Write and solve a proportion.
Find the cross products.
Simplify.
Answer The actual distance between the two towns
is 26 miles.
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Example 2
SCALE DRAWING A scale drawing of a new house has
a scale of 1 inch 4 feet. The height of the
living room ceiling is 2.75 inches on the scale
drawing. What is the actual height of the ceiling?
A. 1.45 feet B. 48 feet C. 11 feet D. 6.88 feet
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Example 3

1. Living room
2. Closet

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Example 3

1. Living room

Scale 1 inch 24 feet
 
 
Find the length
 
l 15 feet
 
 
Find the width
 
w 18 feet
Answer 15 ft by 18 ft
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Example 3
b. closet
Scale 1 inch 24 feet
 
 
Find the length
 
l 6 feet
 
 
Find the width
 
w 12 feet
Answer 6 ft by 12 ft
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Example 3

1. Master Bedroom 12 feet by 15 feet

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Example 3

1. Master Bedroom 12 feet by 15 feet

Scale 1 inch 24 feet
 
 
Find the length
1 12 24 l
12 24l 24 24
 
 
 
Find the width
 
15 24w 24 24
 
 
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End of the Lesson