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 is line of symmetry?

Back

A line of symmetry is a line that divides a shape into two identical parts that are mirror images of each other.

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 find the order of rotational symmetry?

Back

To find the order of rotational symmetry, rotate the shape around its center and count how many times it matches its original position before completing a full turn.

Front

What is the center of rotation?

Back

The center of rotation is the fixed point around which a shape is rotated.

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 a shape with no lines of symmetry?

Back

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

Front

What is an example of a shape with rotational symmetry of order 2?

Back

A rectangle has rotational symmetry of order 2.