Dilations and Scale Factor Flashcard

Flashcard
•
Mathematics
•
7th - 10th Grade
•
Hard
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6 questions
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1.
FLASHCARD QUESTION
Front
What is a dilation in geometry?
Back
A dilation is a transformation that alters the size of a figure but keeps its shape, either enlarging or reducing it.
2.
FLASHCARD QUESTION
Front
What is the scale factor in a dilation?
Back
The scale factor is a number that describes how much a figure is enlarged or reduced during a dilation.
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 corresponding sides in similar figures?
Back
Corresponding sides are sides in two or more figures that are in the same relative position.
5.
FLASHCARD QUESTION
Front
How do you find the image of a point under dilation?
Back
Multiply the coordinates of the point by the scale factor.
6.
FLASHCARD QUESTION
Front
What is the image of point B (-10, -6) under a dilation with scale factor k = 1/2?
Back
(-5, -3)
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