Preserve Congruence Transformations

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.3

CCSS.HSG.CO.A.5

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

• (-5, 5)

• (-3, 5)

• (-5, 3)

• (-3, 3)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which answer shows a reflection across the y-axis?

• a

• b

• c

• d

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Translation are always _______

• Congruent

• Bigger

• Smaller

• Rotated

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

When you transform a figure, it is congruent to the original figure.

• True

• False

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which of the following is an acceptable explanation why transformed figures are congruent to the original figures.

• The figures are actually NOT congruent.

• It depends on whether you translated, rotated, or reflected.

• Side lengths and angles measures stay the same when transformed.

• The figures look the same.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

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

• Reflection across the x-axis

• Reflection across the y-axis

• 90^o clockwise rotation

• 90^o counterclockwise rotation

Tags

CCSS.8.G.A.3

Shapes that are identical in size, shape and measure are...

• Congruent 

• Image 

• Angles 

• Vertices 

Tags

CCSS.8.G.A.2

Rotating a pre-image _____degrees will place it back to its original position.

• 180

• 90

• 270

• 360

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which of the following describes the sequence of transformations shown?

• Reflect across the x-axis and then rotate -90 degrees around the origin

• Rotate -90 degrees around the origin and then translate down.

• Reflect across the x-axis and then reflect across the y-axis.

• Translate up and then rotate 90 degrees about the origin.

Tags

CCSS.8.G.A.3