
Performing transformations

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 enlarge or reduce figures in geometry.
2.
FLASHCARD QUESTION
Front
If a scale factor is greater than 1, what happens to the size of a figure?
Back
The figure is enlarged.
3.
FLASHCARD QUESTION
Front
If a scale factor is less than 1, what happens to the size of a figure?
Back
The figure is reduced or shrunk.
4.
FLASHCARD QUESTION
Front
What is the scale factor of an enlargement from figure C to figure A if the dimensions are multiplied by 3?
Back
3
5.
FLASHCARD QUESTION
Front
What is the scale factor of a reduction if the dimensions are multiplied by 1/2?
Back
1/2
6.
FLASHCARD QUESTION
Front
If the scale factor from figure A to figure B is 4, how many times larger is the area of B than the area of A?
Back
16 times larger (Area scales by the square of the scale factor).
7.
FLASHCARD QUESTION
Front
If a rectangle has a width of 18 in. and a length of 24 in., what is the new length if the width is enlarged to 54 in. using proportionality?
Back
72 in.
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