What is a dilation in geometry?
Dilations Practice

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•
Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A dilation is a transformation that alters the size of a figure but not its shape, using a scale factor.
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.
3.
FLASHCARD QUESTION
Front
How do you find the image of a point after dilation?
Back
To find the image of a point after dilation, multiply the coordinates of the point by the scale factor.
4.
FLASHCARD QUESTION
Front
What happens to a figure during an enlargement?
Back
During an enlargement, the figure increases in size, and the scale factor is greater than 1.
5.
FLASHCARD QUESTION
Front
What happens to a figure during a reduction?
Back
During a reduction, the figure decreases in size, and the scale factor is between 0 and 1.
6.
FLASHCARD QUESTION
Front
If point B (4, 9) is dilated by a scale factor of 2, what is the new position?
Back
B' (8, 18)
7.
FLASHCARD QUESTION
Front
If point B (4, 9) is dilated by a scale factor of 1/2, what is the new position?
Back
B' (2, 4.5)
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