What is a dilation in geometry?
Dilations and other transformations

Flashcard
•
Mathematics
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A dilation is a transformation that alters the size of a figure but not its shape, using a scale factor.
2.
FLASHCARD QUESTION
Front
What does the scale factor (SF) indicate in a dilation?
Back
The scale factor indicates how much a figure is enlarged or reduced during a dilation.
3.
FLASHCARD QUESTION
Front
If the scale factor is greater than 1, what type of transformation occurs?
Back
An enlargement occurs.
4.
FLASHCARD QUESTION
Front
If the scale factor is less than 1, what type of transformation occurs?
Back
A reduction occurs.
5.
FLASHCARD QUESTION
Front
What is the scale factor if a point is dilated from (2, 3) to (8, 12)?
Back
The scale factor is 4.
6.
FLASHCARD QUESTION
Front
How do you calculate the scale factor between two similar figures?
Back
The scale factor is calculated by dividing the length of a side of the image by the length of the corresponding side of the original figure.
7.
FLASHCARD QUESTION
Front
What is the scale factor from ABCD to MNOP if the lengths of corresponding sides are in the ratio 2:3?
Back
The scale factor is 2/3.
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