90 Degree Rotations

If you were to rotate ABCD 90° counterclockwise about the origin, what would the coordinate of A' be?

(a)  

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is a transformation that turns a figure about a fixed point for a given angle?

• Point of Rotation 
• Vertex 
• Rotations
• Image 

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

How many degrees was the figure rotated?

• 90 degrees counterclockwise 
• 180 degrees
• 90 degrees clockwise

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Rotate the point (7,8) around the origin 90 degrees counterclockwise.
State the image of the point.

(a)  

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Triangle B is rotated 90° counterclockwise with the origin as the center of rotation to create a new figure. Which rule describes this transformation?

• (x,y)→(y, -x) 
• (x,y)→(x,y)
• (x,y)→(-x,-y)
• (x,y)→(-y,x)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Rotate the point (-9,1) around the origin 90 degrees. State the image of the point.

(a)  

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Match the description with the graph shown below.  (Hint: There are two correct answers)

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Find the image of triangle ABC after rotating 90 degrees counterclockwise about the origin. What are the coordinates of C' ?

(a)  

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

This figure is in quadrant 4. If it is rotated 90 degrees counter clockwise, which quadrant will it end in?

• quadrant 1

• quadrant 2

• quadrant 3

• quadrant 4

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

If A is the pre-image, which figure is a 90 degree turn counterclockwise?

• A

• B

• C

• D

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5