What is a dilation in geometry?
Dilations

Flashcard
•
Mathematics
•
7th - 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 keeps its shape, using a scale factor.
2.
FLASHCARD QUESTION
Front
True or False: The 'image' is the shape after the dilation.
Back
True
3.
FLASHCARD QUESTION
Front
What mathematical operation is used with the scale factor in a dilation?
Back
Multiplication.
4.
FLASHCARD QUESTION
Front
True or False: Dilations can both enlarge and reduce figures.
Back
True.
5.
FLASHCARD QUESTION
Front
What is the scale factor in a dilation?
Back
The scale factor is the ratio of a length of the new figure to the corresponding length on the original figure.
6.
FLASHCARD QUESTION
Front
If a shape is dilated by a scale factor of 2, what happens to its size?
Back
The shape doubles in size.
7.
FLASHCARD QUESTION
Front
If a shape is dilated by a scale factor of 1/2, what happens to its size?
Back
The shape is reduced to half its original size.
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