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Geometry · Chapter 3 · Lesson 3.7 · Printable PDF

Reflections Worksheet with Answer Key

8 problems on reflections: points in the axes and other mirror lines, finding a point from its image, finding the mirror line, correcting a rule, and symmetric triangles. 2 pages, with a worked answer key.

8 problems2 pagesanswer key
Printable Reflections worksheet with answer key - Geometry (Page 1 PDF preview)
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What's on the worksheet

  1. Reflect each point in the given mirror line:
    (4, −9) over the x-axis(0, 6) over the y-axis(−2, 7) in the line x = 1(3, −4) in the line y = -3(−6, 1) in the line y = x
  2. Find the point whose image is known under a reflection in a horizontal line.
  3. Write the rule for a vertical line reflection and find B.
  4. Find a using a reflection in the line y = -x.
  5. Find the horizontal mirror line that sends one line to another.
  6. Test Priya's rule for a reflection in x = 1 against the definition.
  7. Reflect a triangle in x = 1 and look for a horizontal line of symmetry.
  8. Read the quadrilateral and mirror line from the grid and find the reflected figure.

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The free lesson teaches it with worked examples and practice problems.

Reflections: the lesson ›

More Chapter 3 worksheets: Transformations and symmetry