Dilations

Flashcard
•
Mathematics
•
7th - 8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a dilation in geometry?
Back
A dilation is a transformation that produces a figure similar to the original by enlarging or reducing it based on a scale factor.
2.
FLASHCARD QUESTION
Front
What does it mean for figures to be similar?
Back
Similar figures have the same shape but may differ in size; their corresponding angles are equal, and their corresponding sides are proportional.
3.
FLASHCARD QUESTION
Front
What is a scale factor?
Back
A scale factor is a number that scales, or multiplies, some quantity. In dilations, it determines how much the figure is enlarged or reduced.
4.
FLASHCARD QUESTION
Front
If a scale factor is greater than 1, what happens to the figure?
Back
The figure is enlarged.
5.
FLASHCARD QUESTION
Front
If a scale factor is less than 1, what happens to the figure?
Back
The figure is reduced.
6.
FLASHCARD QUESTION
Front
What is the 'image' in a dilation?
Back
The 'image' is the resulting figure after the dilation has been applied.
7.
FLASHCARD QUESTION
Front
What is the 'pre-image' in a dilation?
Back
The 'pre-image' is the original figure before the dilation is applied.
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