Symmetry - Rotation and Reflection

Front

What is symmetry?

Back

Symmetry is a property where a shape or object can be divided into parts that are identical or 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 identical halves 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

What is rotational symmetry?

Back

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

Front

How many degrees can a shape with rotational symmetry be turned before it looks the same?

Back

The number of degrees depends on the shape; for example, a square has rotational symmetry at 90 degrees.

Front

What is an example of an object with reflectional symmetry?

Back

A butterfly is an example of an object with reflectional symmetry.

Front

How many lines of symmetry does a regular hexagon have?

Back

A regular hexagon has 6 lines of symmetry.

Front

What is the difference between reflectional symmetry and rotational symmetry?

Back

Reflectional symmetry involves flipping a shape over a line, while rotational symmetry involves turning a shape around a point.

Front

Can a shape have both reflectional and rotational symmetry?

Back

Yes, many shapes, like a star, can have both reflectional and rotational symmetry.