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      • A square has rotational symmetry of order 4. This is because it can be rotated four times (90°, 180°, 270° and 360°) and still look the same.
      www.shalom-education.com/courses/gcsemaths/lessons/geometry-and-measures/topic/lines-of-symmetry/
  1. Recognize a line of symmetry for a two-dimensional figure as a line across the figure such that the figure can be folded along the line into matching parts. Identify line-symmetric figures and draw lines of symmetry.

  2. You can find if a shape has a Line of Symmetry by folding it. When the folded part sits perfectly on top (all edges matching), then the fold line is a Line of Symmetry. Here I have folded a rectangle one way, and it didn't work .

  3. Lines of symmetry are straight lines that divide a shape into two equal parts where one part is an exact reflection of the other. E.g. A rectangle has two lines of symmetry (LoS) shown below using a dashed line.

  4. Any shape that can be folded down a line to get two matching halves is said to have a line symmetry. The number of lines of symmetry for a shape can be determined by using a ruler to visualize when the shape or object can be divided equally into 2 equal pieces that are a reflection of each other.

    • which shape has a line symmetry with 90 times1
    • which shape has a line symmetry with 90 times2
    • which shape has a line symmetry with 90 times3
    • which shape has a line symmetry with 90 times4
  5. A line of symmetry is an imaginary line that divides a shape into two equal halves, in a way that each half is a mirror image of the other. When a shape is folded along its line of symmetry, the two halves match exactly.

  6. This Maths article shows how to find lines of symmetry on shapes and practise drawing them.

  7. A figure has line symmetry if it can be reflected across a line back onto itself. An isosceles triangle has one line of symmetry from its vertex to the midpoint of the base. The letter W has one line of symmetry through its middle.

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