What is a dilation in geometry?
Dilations and Symmetry Practice Test

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•
Mathematics
•
9th - 12th 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, defined by a scale factor.
2.
FLASHCARD QUESTION
Front
What is the scale factor in the transformation (x, y) → (3/4x, 3/4y)?
Back
3/4
3.
FLASHCARD QUESTION
Front
How many lines of symmetry does a square have?
Back
4
4.
FLASHCARD QUESTION
Front
What does it mean if a transformation is an enlargement?
Back
An enlargement means the figure is scaled up, resulting in a larger size, with a scale factor greater than 1.
5.
FLASHCARD QUESTION
Front
What does it mean if a transformation is a reduction?
Back
A reduction means the figure is scaled down, resulting in a smaller size, with a scale factor less than 1.
6.
FLASHCARD QUESTION
Front
Identify the smallest angle of rotation that maps a shape to itself.
Back
The smallest angle of rotation that maps a shape to itself is the angle at which the shape looks the same after rotation.
7.
FLASHCARD QUESTION
Front
How many lines of symmetry does a circle have?
Back
An infinite number of lines of symmetry.
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