What is a dilation in geometry?
Dilations

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Mathematics
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A dilation is a transformation that produces an image that is the same shape as the original, but is a different size. It is defined by a center point and a scale factor.
2.
FLASHCARD QUESTION
Front
What does the scale factor in a dilation represent?
Back
The scale factor is a number that describes how much the figure is enlarged or reduced during a dilation. A scale factor greater than 1 enlarges the figure, while a scale factor between 0 and 1 reduces it.
3.
FLASHCARD QUESTION
Front
If the scale factor is 1/2, what happens to the size of the figure?
Back
The figure is reduced to half its original size.
4.
FLASHCARD QUESTION
Front
What are the coordinates of point A(3, 6) after a dilation with a scale factor of 2?
Back
A' (6, 12)
5.
FLASHCARD QUESTION
Front
What are the coordinates of point G(-10, -6) after a dilation with a scale factor of 1/2?
Back
G' (-5, -3)
6.
FLASHCARD QUESTION
Front
What is the relationship between similar figures?
Back
Similar figures have the same shape but different sizes.
7.
FLASHCARD QUESTION
Front
How do you determine if two figures are similar?
Back
Two figures are similar if their corresponding angles are equal and the lengths of their corresponding sides are proportional.
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