Similar Figures Transformations

A figure is dilated by a scale factor of 4. Which of the following statements about the figure must be true?

• The perimeter and area are both multiplied by 4.

• The perimeter is multiplied by 4 and the area is multiplied by 16.

• The perimeter and area are both divided by 4.

• The perimeter is multiplied by 16 and the area is multiplied by 4.

A rectangle has an area of 48 cm². It is dilated by a scale factor of 2. What would be the area of the new rectangle (the image)?

• 96 cm²

• 192 cm²

• 216 cm²

• 2304 cm²

Dilations are ________ but not congruent.

• Similar

• Flipped

• Rotated

• Congruent

How does reflecting a figure over the y-axis change the ordered pair?

• Changes the x-coordinate

• Changes the y-coordinate

Which proportion can be used to find 'x'?

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• 
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A figure with the coordinates A(3,3) B(6,6) C(9,3) is dilated by a scale factor of 3 with the origin as the center of dilation. What are the coordinates of the image?

• A'(9,9) B'(18,18) C'(27,9)

• A'(6,6) B'(9,9) C'(12,6)

• A'(0,0) B'(3,3) C'(6,0)

• A'(1,1) B'(2,2) C'(3,1)

If a shape is dilated by a scale factor of 1/2, what is the resulting perimeter?

• The new perimeter is 1/2 the original

• The new perimeter is 2 times the original

• The new perimeter is 1/4 the original

• The new perimeter is 4 times the original

What is the scale factor of the dilation?

Which answer shows a reflection across the y-axis?

• a

• b

• c

• d

Reflect over x-axis. Which point would be at (3, -6)

• A'

• B'

• C'

• H'