1. Splash Screen

2. 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?
5-Minute Check 1

3. You have already written and solved proportions. (Lesson 6–5)
Use scale drawings.
Construct scale drawings.
Then/Now

4. Example: A scale model has a scale of 1 inch = 2 feet.
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.
Vocabulary

5. Method 1 Use a proportion.
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.
map distance →
actual distance →
← map distance
← actual distance
Find the cross products.
Simplify.
Answer: The actual distance between the two towns is 26 miles.
Example 2

6. 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 feet
B. 48 feet
C. 11 feet
D feet
Example 2

7. Living room
Closet
Example 3

8. Answer: 15 ft by 18 ft 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
Example 3

9. Answer: 6 ft by 12 ft 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
Example 3

10. Master Bedroom: 12 feet by 15 feet
Example 3

11. Master Bedroom: 12 feet by 15 feet Scale: 1 inch = 24 feet
Find the length:
1 • = 24 • l
12 = 24l
Find the width:
15 = 24w
Example 3

12. End of the Lesson