Symmetry

Front

What is symmetry?

Back

Symmetry is when a shape can be divided into two identical parts that are mirror images of each other.

Front

What is a line of symmetry?

Back

A line of symmetry is an imaginary line that divides a shape into two equal halves that are mirror images.

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

How many lines of symmetry does a rectangle have?

Back

A rectangle has 2 lines of symmetry.

Front

How many lines of symmetry does a triangle have?

Back

An equilateral triangle has 3 lines of symmetry, while an isosceles triangle has 1.

Front

What shape has no lines of symmetry?

Back

A scalene triangle has no lines of symmetry.

Front

How can you find lines of symmetry in a shape?

Back

You can fold the shape along a line to see if both halves match perfectly.

Front

What is rotational symmetry?

Back

Rotational symmetry is when a shape can be rotated around a center point and still look the same at certain angles.

Front

How many degrees can a shape with rotational symmetry be rotated?

Back

It depends on the shape; for example, a square can be rotated 90 degrees and still look the same.