Q: Which are the shapes that have one line of symmetry?

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No. Asymmetric shapes do not have any lines (or planes) of symmetry.

Many shapes have more than one line of symmetry. These include a rectangle, equilateral triangle, and a square. While a rectangle has two lines of symmetry, an equilateral triangle has three.

It has one line of vertical symmetry

Symmetry

An isosceles triangle for example has only one line of symmetry

Related questions

You would call the group of shapes which has at least one line of symmetry symmetrical shapes. Stars, circles, and rectangles are considered symmetrical shapes.

All regular shapes have a line of symmetry. But you can get rid of its line of symmetry by making it irregular (so the angles aren't the same).

It all depends what types of shapes, but take for example a circle, it can have multiple lines of symmetry.

Shapes do not always have lines of symmetry. For example, if you have an irregular shape, it will not have a line of symmetry. I am quite certain though that all geometric shapes have a line of symmetry.

No. Asymmetric shapes do not have any lines (or planes) of symmetry.

A square dies because you can fold it across 😜.

None. A line of symmetry, if it exists, is infinitely long and so a third of the line cannot exist as a separate entity.

A square has 4 lines of symmetry

Yes, they do exist. In fact, there are infinitely many of them.

Trapezoid, isosceles triangle, arrow, kite, etc.

A nonrectangular parallelogram has rotational symmetry, but not line symmetry. Additionally, shapes such as the letters S, N, and Z can be rotated to show rotational symmetry, although they do not have line symmetry.

isoceles triangle