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 an equilateral triangle have?

Back

3

Front

How many lines of symmetry does a square have?

Back

4

Front

How many lines of symmetry does a rectangle have?

Back

2

Front

How many lines of symmetry does a circle have?

Back

Infinite

Front

Does a triangle always have a line of symmetry?

Back

Not all triangles have a line of symmetry; only isosceles and equilateral triangles do.

Front

How many lines of symmetry does a butterfly have?

Back

1

Front

Which shape has no lines of symmetry: a circle, a square, or a scalene triangle?

Back

A scalene triangle has no lines of symmetry.

Front

Is this a line of symmetry? (Image of a shape with a line drawn through it)

Back

Yes, if the two halves are mirror images.

Front

What is the line of symmetry for a vertical rectangle?

Back

The vertical line that divides the rectangle into two equal halves.