What is a rotation in geometry?
Topic 3&4 q. 24

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Mathematics
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9th - 10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A rotation is a transformation that turns a figure around a fixed point, called the center of rotation, by a certain angle in a specified direction.
2.
FLASHCARD QUESTION
Front
What does it mean to rotate a figure 270 degrees clockwise?
Back
Rotating a figure 270 degrees clockwise means turning the figure 270 degrees in the direction of the clock's hands, resulting in a new position.
3.
FLASHCARD QUESTION
Front
What is reflection in geometry?
Back
Reflection is a transformation that flips a figure over a line, creating a mirror image of the original figure.
4.
FLASHCARD QUESTION
Front
What does it mean to reflect a figure across the line y = x?
Back
Reflecting a figure across the line y = x means that for every point (x, y) in the figure, the new point will be (y, x).
5.
FLASHCARD QUESTION
Front
What is dilation in geometry?
Back
Dilation is a transformation that changes the size of a figure but not its shape, using a scale factor and a center of dilation.
6.
FLASHCARD QUESTION
Front
What is a scale factor in dilation?
Back
The scale factor is a number that describes how much a figure is enlarged or reduced during a dilation.
7.
FLASHCARD QUESTION
Front
How do you find the coordinates of a point after a rotation?
Back
To find the coordinates after a rotation, use the rotation formulas based on the angle and the center of rotation.
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