Line and Rotational Symmetry

Front

What is line symmetry?

Back

Line symmetry, also known as reflection symmetry, occurs when a figure can be divided into two identical halves that are mirror images of each other.

Front

What is rotational symmetry?

Back

Rotational symmetry is when a figure 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 figure matches its original position during a full rotation of 360 degrees.

Front

How do you calculate the angle of rotational symmetry?

Back

The angle of rotational symmetry can be calculated by dividing 360 degrees by the order of rotational symmetry.

Front

What is the angle of rotational symmetry for a figure with order 4?

Back

90°.

Front

Which shapes have rotational symmetry?

Back

Shapes like circles, squares, and regular polygons have rotational symmetry.

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 letter with rotational symmetry?

Back

The letter 'O' has rotational symmetry.

Front

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

Back

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