Rotations Warm Up

Triangle A is rotated 270° counterclockwise with the origin as the center of rotation to create a new figure. Which triangle shows the new location?

• A

• B

• C

• D

How many degrees was the figure rotated?

• 270 degrees counterclockwise

• 180 degrees

• 90 degrees counterclockwise

What is the angle of the counterclockwise rotation?

• 90°

• 180°

• 270°

If (12,-19) if rotated 90 degrees CCW, what will it become?

• (12,-19)

• (19,12)

• (-19,-12)

• (-12,19)

What transformation occurred?

• translate down 6

• rotation 270 degrees counterclockwise

• rotation 180 degrees

• reflection across y = -x

Rotate the figure below 90 degrees counterclockwise.

• 
• 
• 
• 

What transformation occurred?

• rotation 90 degrees counterclockwise

• rotation 270 degrees counterclockwise

• reflect across y = x

• translate right 1 and up 1

Find the new points after (8,-4) (-9,1) (-4,0) (-2,-3) are rotated 270 degrees CCW

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Describe the transformation in the image.

• Translation

• Reflection

• Rotation

A turn is also called a ___________.

• Translation

• Reflection

• Rotation

• Transformation