Scale Factor

Flashcard
•
Mathematics
•
7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a scale factor?
Back
A scale factor is a number that scales, or multiplies, a quantity. It is used to determine the size of a scale drawing compared to the original size.
2.
FLASHCARD QUESTION
Front
If the original size is 12 units and the scale factor is 1/4, what is the size of the scale drawing?
Back
3 units.
3.
FLASHCARD QUESTION
Front
How do you calculate the actual distance using a map scale?
Back
Multiply the distance on the map by the scale factor. For example, if the scale is 2 inches = 40 miles, and the distance on the map is 4.125 inches, the actual distance is 4.125 * (40/2) = 82.5 miles.
4.
FLASHCARD QUESTION
Front
What is the scale factor if a scale drawing measures 8 units wide and the original measures 4 units wide?
Back
The scale factor is 2:1.
5.
FLASHCARD QUESTION
Front
What is the scale factor from ABCD to MNOP if the scale factor from MNOP to ABCD is 3/2?
Back
The scale factor from ABCD to MNOP is 2/3.
6.
FLASHCARD QUESTION
Front
If a scale drawing is larger than the original, what can you say about the scale factor?
Back
The scale factor is greater than 1.
7.
FLASHCARD QUESTION
Front
If a scale drawing is smaller than the original, what can you say about the scale factor?
Back
The scale factor is less than 1.
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