Rotations of Shapes

Reflection or Rotation

• Reflection

• Rotation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which type of rotation will not change the orientation of an object?

• 90^o rotation

• 180^o rotation

• 270^o rotation

• 360^o rotation

Tags

CCSS.8.G.A.3

The transformation that turns or spins a shape 90, 180 or 270 degrees is called a ...

• Dilation

• Reflection

• Rotation

• Translation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Reflections flip shapes
Rotations turn shapes
A shaped rotated 90^o 
counter clockwise

• ( x , y ) → ( y , -x ) 

• ( x , y ) → ( -y , x ) 

• ( x , y ) → ( x , -y ) 

• ( x , y ) → ( -x , y ) 

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

( x , y ) → ( -y , x )

• Dilation

• Reflection

• Rotation

• Translation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

( x , y ) → ( y , -x )

• Dilation

• Reflection

• Rotation

• Translation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Reflections flip shapes
Rotations turn shapes
( x , y ) → ( -y , x )
would cause the shape to

• Flip over the x axis

• Flip over the y axis

• Rotate 90^o clockwise

• Rotate 90^o counter clockwise

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Reflections flip shapes
Rotations turn shapes
( x , y ) → ( y , -x )
would cause the shape to

• Flip over the x axis

• Flip over the y axis

• Rotate 90^o clockwise

• Rotate 90^o counter clockwise

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Rotations of 180^o 
would result in

• ( x , y ) → ( y , -x ) 

• ( x , y ) → ( -y , x ) 

• ( x , y ) → ( -x , -y ) 

• ( x , y ) → ( -y , -x ) 

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5