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Online Quiz (Worksheet A B C D)

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7.6 Dilation

  • A dilation is a transformation that stretches or shrinks a figure to create a similar figure.
  • It is a type of similarity transformation.
  • In a dilation, a figure is enlarged or reduced with respect to a fixed point called center of dilation.
  • The scale factor of a dilation is the ratio of a side length of the image to the corresponding side length of the original figure.
  • You can describe a dilation with respect to the origin with the notation (x,y) (kx,ky), where k is the scale factor.
    • If 0 < k < 1, the dilation is a reduction.
    • If k>1, the dilation is an enlargement.

Directions: Using graph paper and dilate the following figures using scale factor of 1, 2, 3, 4 and 1/2.

Answer the following questions. Also write at least 10 examples of your own.

Q 1: What is the scale factor of the dilated figure.


Question 2: This question is available to subscribers only!

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