Lines of symmetry for quadrilaterals

How do lines of symmetry for polygons work? They are lines that cut a polygon in two overlapping regions.

Notes

Lines of symmetry for quadrilaterals: learn the lines of simmetry for all the quadrilaterals 

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What is a line of symmetry?

A line of symmetry is a line that divides a shape in two overlapping parts.

There are some quadrilaterals that have a line of symmetry and others that don't. You can find if a shape has a line of symmetry by folding it.

Lines of symmetry for parallelograms and rectangles

Lines of symmetry for parallelograms and rectangles

Lines of symmetry for rhombuses and squares

Lines of symmetry for rhombuses and squares

Lines of symmetry for trapezoids

Lines of symmetry for trapezoids