7.8 Congruence and Orientation

What is congruence?

• Same size, different shape
• Same size, same shape
• The way a figure is facing
• Flipping over a line

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

What is orientation?

• Same size, different shape
• Same size, same shape
• The way a figure is facing
• Flipping over a line

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

Which representation of a transformation on a coordinate grid does not preserve congruence?

• (x,y) → (2x,2y)
• (x,y) → (x+3, y-9)
• (x,y) → (-x,y)
• (x,y) → (y,-x)

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

A transformation is applied to create a new figure. Which transformation does not preserve congruence?

• A reflection across the x-axis
• A translation 4 units up
• A dilation by a scale factor of 5
• A rotation 90° counter clockwise

Identify the transformation from ABC to A'B'C'.

• 90^o clockwise rotation
• 90^o counter clockwise rotation
• Reflection across the y-axis
• Reflection across the x-axis

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

Translation are always _______

• Congruent
• Bigger
• Smaller
• Rotated

Tags

CCSS.8.G.A.1

CCSS.8.G.A.2

CCSS.8.G.A.3

Congruent geometric figures have the:

• Same size
• Sides Equal
• Same Size and Same Shape
• Angles Equal

Tags

CCSS.8.G.A.2

What will be the new position of the given point after a reflection across the y-axis?

• 
• 
• 
• 

Tags

CCSS.6.NS.C.8

A turn is also called a ___________.

• Translation
• Reflection
• Rotation
• Transformation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

How many degrees was the figure rotated?

• 90 degrees counterclockwise 
• 180 degrees
• 270 counterclockwise 

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5