Vocabulary
Scale factor
Scale or Not Scaled
Scale Questions
Scaled Families
100
A figure that is enlarged or reduced
Scaled copy
100
The new image is larger than before. What do we know about the scale factor?
The scale factor is greater than 1
100
Which figures are a scaled copy of the original?
Copy 1 and Copy 2
100
A scaled drawing of square deck has a measurement of 5 inches. The scale from the drawing to the actual deck is 1 inch to 5 feet. What is the length of the actual deck?
25 feet
100
Which figures are a scaled copy of T?
B, E, D
200
Parts that are in the same position in two related figures
Corresponding sides
200
What is the scale factor from the original (Left) to the scaled copy (Right)? 
Scale factor is 3
200
Which image is a scaled copy if A?
Image D
200
If you are scaling a shape what operations can you use to scale a shape?
(Add, subtract, multiply, or divide)
Multiply
200
What is the scale factor from T to B?
1
300
The ratio by which a figure is enlarged or reduced
Scale factor
300
Rectangle ABCD is twice the size of Rectangle LMNO. If the length of CD is 46, what is the length of NO?
23
300
Is this a scaled copy?
Yes
300
What type of number when used as a scale factor will make the copy smaller?
Fraction
300
What is the scale factor from T to E?
2
400
Ratio showing relationship between distances
Used in maps and models
Example: 1 inch = 10 miles
Scale
400
Rectangle TINA is a scaled copy of Rectangle JEFY. Side TI has a length of 15. JE has a length of 5. What is the scale factor?
3
400
Are these images scaled copies of each other?
No
400
If you scale a shape up by 4, what scale would you use to bring it back to the original shape?
1/4
400
What is the scale factor from T to D?
1.5
500
Inverse of a scale factor
(Flipped Fraction)
Reciprocal
500
A scale drawing of a rectangular community garden is 5 inches wide and 8 inches long. The actual garden is 320 meters long. What is the area of the actual garden, in square meters?
64,000 Square Meters
500
What happens to the angles of a shape if it is scaled?
Nothing the angles stay the same.
500
If my image is scaled by a factor of 3/2, would the copy be a reduction or enlargement?
Enlargement (Bigger)
500
Rectangle A measures 10 in by 5 inches. Rectangle B is a scaled copy. Which measurements could be the dimensions?
A. 9 in by 4 in
B. 5 in by 2.5 in
C. 15 in by 7.5 in
D. 20 in by 10 in
E. 11 in by 6 in
B, C, D