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The number of lines of symmetry in a polygon corresponds to the number of sides it has. If a polygon has n sides, then its symmetry will be n lines of symmetry and it will have one point of symmetry. A pentagon has five lines of symmetry, nonagon has 9, n-gon has n lines of symmetry, so on and so forth.

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Q: Do polygons have to have one line of symmetry?

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It has one line of vertical symmetry

An isosceles triangle for example has only one line of symmetry

ractangle

no

Only One Line of SymmetryAn isosceles triangle only has one line of symmetry.

Related questions

yes

Yes It Does

yes

Yes.

Yes they are because every polygon has at least one line of symmetry.:)

All regular polygons do.

A circle (infinitely many lines of symmetry), ellipse, rectangle, and all regular polygons.

There would be too many to name. All regular polygons have a line of symmetry, but there are still polygons that don't.

almost all even number of sided polygons, regular has to be

One line of symmetry

Regular polygons.

A symmetrical shape is said to have line symmetry. A shape that has line symmetry can have one or more lines of symmetry

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