Mathematics

8th

grade

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Transformations & Symmetry

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12 questions

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  • 1. Multiple Choice
    10 minutes
    1 pt
    Image

    How many lines of symmetry does an equilateral triangle have and what is the degree of rotational symmetry?

    0 lines of symmetry and the degree of rotational symmetry is 90

    3 lines of symmetry and the degree of rotational symmetry is 90

    1 line of symmetry and the degree of rotational symmetry is 120

    3 lines of symmetry and the degree of rotational symmetry is 120

  • 2. Multiple Choice
    10 minutes
    1 pt

    Point A (4, -2) is reflected over the line y = x, rotated 270 degrees CCW and reflected over the y-axis. What is A'''?

    Point A''' is (4, -2)

    Point A''' is (4, 2)

    Point A''' is (-2, 4)

    Point A''' is (-4, 2)

  • 3. Multiple Choice
    10 minutes
    1 pt
    Image

    Describe the transformation.

    translation by (x - 1, y + 6)

    reflection across x = -2

    translation by (x + 6, y - 1)

    reflection across y = -2

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