symmetry

Front

What is symmetry?

Back

Symmetry is a property where a shape or object 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 identical halves.

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

What is the order of rotational symmetry?

Back

The order of rotational symmetry is the number of times a shape fits onto itself during a full rotation of 360 degrees.

Front

How do you calculate the angle of rotational symmetry?

Back

To calculate the angle of rotational symmetry, divide 360 degrees by the order of rotational symmetry.

Front

If a shape has an order of rotational symmetry of 5, what is the angle of rotational symmetry?

Back

The angle of rotational symmetry is 72 degrees (360° ÷ 5).

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 an example of a shape with no lines of symmetry?

Back

An example of a shape with no lines of symmetry is a scalene triangle.

Front

What is the order of rotational symmetry for a regular pentagon?

Back

The order of rotational symmetry for a regular pentagon is 5.