12/5 Dilations Warm Up
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•
Mathematics
•
8th Grade
•
Hard
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15 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, using a center point and a scale factor.
2.
FLASHCARD QUESTION
Front
What does the scale factor indicate in a dilation?
Back
The scale factor indicates how much larger or smaller the image will be compared to the original figure. A scale factor greater than 1 enlarges the figure, while a scale factor between 0 and 1 reduces it.
3.
FLASHCARD QUESTION
Front
If a triangle is dilated by a scale factor of 2, what happens to its dimensions?
Back
Each dimension of the triangle is multiplied by 2, making the triangle twice as large.
4.
FLASHCARD QUESTION
Front
What is the image of a point (x, y) after a dilation with a scale factor of 3?
Back
The image of the point will be (3x, 3y).
5.
FLASHCARD QUESTION
Front
What happens to a polygon when it is dilated by a scale factor less than 1?
Back
The image of the polygon will be smaller than the original polygon.
6.
FLASHCARD QUESTION
Front
How do you find the coordinates of a dilated figure?
Back
Multiply each coordinate of the original figure by the scale factor.
7.
FLASHCARD QUESTION
Front
What is the center of dilation?
Back
The center of dilation is the fixed point in the plane about which all points are expanded or contracted during the dilation.
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