Properties of Transformations

Which transformations preserve the size of a figure?

• Translation (slide)

• Reflection (flip)

• Rotation (turn)

• Dilation (smaller/bigger)

Which transformations preserve the orientation of a figure?

• Translation (slide)

• Reflection (flip)

• Rotation (turn)

• Dilation (smaller/bigger)

"Dilation preserves the angles of a figure."

• True

• False

"Translation preserves the shape of a figure."

• True

• False

"Rotation changes the size of a figure to be larger or smaller."

• True

• False

Both Translation and Reflection preserve:

• Orientation

• Angles

• Size

• Shape

Both Rotation and Reflection do not preserve:

• Orientation

• Angles

• Size

• Shape

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Triangle ABC is reflected across the coordinate plane to produce Triangle A'B'C'. Which angles must be congruent?

• A to C'

• B to B'

• C to C'

• B to C'

• A to B'

Line segment DM with endpoints D(-4,5) and M(6,0), is reflected about the x-axis to give line segment D'M'. What are the coordinates of Point D'?

• (-4,-5)

• (4,-5)

• (-4,5)

• (4,5)