Symmetry

Front

What is symmetry?

Back

Symmetry is a property where a shape or object is identical on both sides of a dividing line or around a central point.

Front

What are the two main types of symmetry?

Back

The two main types of symmetry are line symmetry (or reflectional symmetry) and rotational symmetry.

Front

Define line symmetry.

Back

Line symmetry occurs when a shape can be divided into two identical halves that are mirror images of each other.

Front

Define rotational symmetry.

Back

Rotational symmetry exists 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 many lines of symmetry does a square have?

Back

A square has 4 lines of symmetry.

Front

How many lines of symmetry does an equilateral triangle have?

Back

An equilateral triangle has 3 lines of symmetry.

Front

What is the angle of rotation for a square?

Back

The angle of rotation for a square is 90 degrees.

Front

How many lines of symmetry does a regular hexagon have?

Back

A regular hexagon has 6 lines of symmetry.

Front

What is an example of a shape with no lines of symmetry?

Back

An irregular shape, such as a scalene triangle, has no lines of symmetry.