Lines of Symmetry

Front

What is a line of symmetry?

Back

A line of symmetry is a line that divides a shape into two identical parts that are mirror images of each other.

Front

How many lines of symmetry does a square have?

Back

A square has 4 lines of symmetry.

Front

How many lines of symmetry does a circle have?

Back

A circle has an infinite number of lines of symmetry.

Front

Can a triangle have lines of symmetry?

Back

Yes, some triangles have lines of symmetry. An equilateral triangle has 3 lines of symmetry.

Front

What is the line of symmetry for a rectangle?

Back

A rectangle has 2 lines of symmetry.

Front

Is a line of symmetry always vertical or horizontal?

Back

No, a line of symmetry can be diagonal as well.

Front

Can a shape have no lines of symmetry?

Back

Yes, some shapes, like a scalene triangle, have no lines of symmetry.

Front

What happens if you fold a shape along its line of symmetry?

Back

The two halves of the shape will match perfectly.

Front

Do both sides of a shape need to be the same for it to have a line of symmetry?

Back

Yes, both sides must be identical when divided by the line of symmetry.

Front

What is an example of a shape with one line of symmetry?

Back

A regular isosceles triangle has one line of symmetry.