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 counterclockwise about the origin?
Back
It means to turn a figure 90 degrees in the opposite direction of the clock's hands around the origin point (0,0) on a 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 clockwise about the origin?
Back
It means to turn a figure 90 degrees in the same direction as the clock's hands around the origin point (0,0) on a 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 counterclockwise?
Back
The new coordinates will be (-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 clockwise?
Back
The new coordinates will be (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 new coordinates will be (-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 the measure of the 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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