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IM Geo.3.3 Practice: Measuring Dilations

Pentagon A'B'C'D'E' is the image of pentagon ABCDE after a dilation centered at F.

What is the scale factor of this dilation?

A polygon has perimeter 12 units.

It is dilated with a scale factor of . What is the perimeter of its image?

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Triangle ABC is taken to triangle A'B'C' by a dilation.

Which of these scale factors for the dilation would result in an image that was larger than the original figure?

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  • B
  • C
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Dilate quadrilateral ABCD using center D and scale factor 2.

Dilate Figure G using center B and scale factor 3.

Polygon Q is a scaled copy of Polygon P.

 The value of  is 6, what is the scale factor?

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  • A
  • B
  • C
  • D
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Prove that segment AD is congruent to segment BC.