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Grade 8 Homework Resolved
Chapter 10:Transformations and Similarity; Lesson 1: Properties of Dilations
Guided Practice
Use triangles ABC and A′B′C ′ for 1–5.
Question 1
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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 = _______
Question 2
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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 _______.
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Question 3
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The ratio of the lengths of the corresponding sides of triangle A′B′C ′ and triangle ABC equals _______.
Question 4
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The corresponding angles of triangle ABC and triangle A′B′C ′ are _______.
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Question 5
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The scale factor of the dilation is _______.
ESSENTIAL QUESTION CHECK-IN
Question 6
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How can you find the scale factor of a dilation?
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