Rotations

Flashcard
•
Mathematics
•
8th Grade
•
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, known as 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 it mean to rotate 90 degrees clockwise about the origin?
Back
To rotate 90 degrees clockwise about the origin means to turn a point or shape 90 degrees in the direction of the clock hands, around the origin (0,0) in the coordinate plane.
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
3.
FLASHCARD QUESTION
Front
What does it mean to rotate 90 degrees counterclockwise about the origin?
Back
To rotate 90 degrees counterclockwise about the origin means to turn a point or shape 90 degrees in the opposite direction of the clock hands, around the origin (0,0) in the coordinate plane.
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
4.
FLASHCARD QUESTION
Front
What is the result of rotating a point (x, y) 90 degrees clockwise?
Back
The result of rotating a point (x, y) 90 degrees clockwise is (y, -x).
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
5.
FLASHCARD QUESTION
Front
What is the result of rotating a point (x, y) 90 degrees counterclockwise?
Back
The result of rotating a point (x, y) 90 degrees counterclockwise is (-y, x).
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
6.
FLASHCARD QUESTION
Front
What is the result of rotating a point (x, y) 180 degrees about the origin?
Back
The result of rotating a point (x, y) 180 degrees about the origin is (-x, -y).
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
7.
FLASHCARD QUESTION
Front
How do you determine the angle of rotation in a transformation?
Back
The angle of rotation is determined by the amount of turn from the original position to the new position, measured in degrees.
Tags
CCSS.8.G.A.3
CCSS.HSG.CO.A.5
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