Math Practice 101
Homework Explained - Math Practice 101

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Grade 8 HMH Go Math - Answer Keys
Chapter 9:Transformations and Congruence; Lesson 2: Properties of Reflections


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9.2 Independent Practice

The graph shows four right triangles. Use the graph for Exercises 4–7.

  • Question 4 (request help)

    Which two triangles are reflections of each other across the x-axis?
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  • Question 5 (request help)

    For which two triangles is the line of reflection the y-axis?
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  • Question 6 (request help)

    Which triangle is a translation of triangle C? How would you describe the translation?
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  • Question 7 (request help)

    Which triangles are congruent? How do you know?
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  • Question 8 (request help)

    a. Graph quadrilateral WXYZ with vertices W(-2, -2), X(3, 1), Y(5, -1), and Z(4, -6) on the coordinate grid.
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  • Question 8 (request help)

    b. On the same coordinate grid, graph quadrilateral W′X′Y′Z′, the image of quadrilateral WXYZ after a reflection across the x-axis.
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  • Question 8 (request help)

    c. Which side of the image is congruent to side \(\overline{YZ}\) ?

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    Name three other pairs of congruent sides.

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  • Question 8 (request help)

    d. Which angle of the image is congruent to \(\angle{X}\)?

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    Name three other pairs of congruent angles.

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