Math Practice 101
Homework Explained - Math Practice 101

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Grade 8 HMH Go Math - Answer Keys
Chapter 10:Transformations and Similarity; Lesson 1: Properties of Dilations


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Guided Practice

Use triangles ABC and A′B′C ′ for 1–5.

  • Question 1 (request help)

    For each pair of corresponding vertices, find the ratio of the x-coordinates and the ratio of the y-coordinates.

    ratio of x-coordinates = _______

    ratio of y-coordinates = _______
  • ratio of x-coordinates =    
    ratio of y-coordinates =    
  • Question 2 (request help)

    I know that triangle A′B′C ′ is a dilation of triangle ABC because the ratios of the corresponding x-coordinates are _______ and the ratios of the corresponding y-coordinates are _______.
  • Type below:
  • Question 3 (request help)

    The ratio of the lengths of the corresponding sides of triangle A′B′C ′ and triangle ABC equals _______.
  •    
  • Question 4 (request help)

    The corresponding angles of triangle ABC and triangle A′B′C ′ are _______.
  • Type below:
  • Question 5 (request help)

    The scale factor of the dilation is _______.
  •    

ESSENTIAL QUESTION CHECK-IN

  • Question 6 (request help)

    How can you find the scale factor of a dilation?
  • Type below:

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