Shapes & 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

Does a square have lines of symmetry? If so, how many?

Back

Yes, a square has 4 lines of symmetry.

Front

What shape has no lines of symmetry?

Back

A parallelogram has no lines of symmetry.

Front

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

Back

A rectangle has 1 line of symmetry.

Front

How many lines of symmetry does a circle have?

Back

A circle has an infinite number of lines of symmetry.

Front

What is the line of symmetry for a vertical rectangle?

Back

The vertical line through the center of the rectangle is the line of symmetry.

Front

Can a shape have more than one line of symmetry? Give an example.

Back

Yes, a shape can have more than one line of symmetry. For example, a square has 4 lines of symmetry.

Front

What is the line of symmetry for an isosceles triangle?

Back

The line of symmetry is the vertical line that divides the triangle into two equal halves.

Front

Is the dotted line in a shape always a line of symmetry?

Back

Not always; it depends on whether the two sides of the shape are mirror images.