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The green shape is a dilation of the black shape.​​What is the scale factor of the dilation?​​

Question

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Solution

To find the scale factor of the dilation from the black shape to the green shape, we can follow these steps:

1. Break Down the Problem

  1. Identify corresponding points on both shapes.
  2. Measure the distance between these points in both shapes.

2. Relevant Concepts

  • The scale factor k k of a dilation can be calculated using the formula: k=distance in green shapedistance in black shape k = \frac{\text{distance in green shape}}{\text{distance in black shape}}

3. Analysis and Detail

  1. Let’s denote the points as follows:

    • Choose a point A A on the black shape and its corresponding point A A' on the green shape.
    • Measure the distance dA d_A between point A A to a specific point (e.g., the origin or another reference point) in the black shape.
    • Measure the distance dA d_{A'} from point A A' to the same reference point in the green shape.
  2. Calculate the scale factor using the measured distances: k=dAdA k = \frac{d_{A'}}{d_{A}}

4. Verify and Summarize

  • Double check the calculated distances to ensure accuracy in the measurements.
  • Summarize the findings with the calculated scale factor.

Final Answer

  • Present the calculated scale factor k k based on the measurements provided.

This problem has been solved

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