8.10C Transformations-Rotations
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a rotation in geometry?
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 specific direction.
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
2.
FLASHCARD QUESTION
Front
What does a 90 degrees clockwise rotation do to a point (x, y)?
Back
The new coordinates will be (y, -x).
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
3.
FLASHCARD QUESTION
Front
What does a 90 degrees counterclockwise rotation do to a point (x, y)?
Back
The new coordinates will be (-y, x).
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
4.
FLASHCARD QUESTION
Front
What is the rule for a 180 degrees rotation about the origin?
Back
The rule is (x, y) → (-x, -y).
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
5.
FLASHCARD QUESTION
Front
How do you determine the angle of rotation when comparing two figures?
Back
You can determine the angle of rotation by measuring the angle formed between the original position and the new position of a point.
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
6.
FLASHCARD QUESTION
Front
What is the center of rotation?
Back
The center of rotation is the fixed point around which a figure is rotated.
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
7.
FLASHCARD QUESTION
Front
If a triangle is rotated 270 degrees counterclockwise, what is the transformation rule?
Back
The transformation rule is (x, y) → (y, -x).
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
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