Dilations and Scale Factor

Flashcard
•
Mathematics
•
10th Grade
•
Hard
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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 maintains its shape, using a scale factor.
Tags
CCSS.8.G.A.3
2.
FLASHCARD QUESTION
Front
What is a scale factor?
Back
A scale factor is a number that scales, or multiplies, the dimensions of a figure during a dilation.
Tags
CCSS.8.G.A.3
3.
FLASHCARD QUESTION
Front
If the scale factor is greater than 1, what type of transformation occurs?
Back
An enlargement occurs.
Tags
CCSS.8.G.A.3
4.
FLASHCARD QUESTION
Front
If the scale factor is less than 1, what type of transformation occurs?
Back
A reduction occurs.
Tags
CCSS.8.G.A.3
5.
FLASHCARD QUESTION
Front
How do you calculate the new length of a side after dilation?
Back
Multiply the original length by the scale factor.
Tags
CCSS.8.G.A.3
6.
FLASHCARD QUESTION
Front
What is the scale factor if the original length is 36 and the new length is 9?
Back
The scale factor is 1/4.
Tags
CCSS.7.G.A.1
7.
FLASHCARD QUESTION
Front
If AC = 64 and OA = 36, what is A'C' if OA' = 9?
Back
A'C' = 16.
Tags
CCSS.HSG.SRT.B.4
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