Symmetry

Front

What is symmetry?

Back

Symmetry is when a shape can be divided into two identical halves that are mirror images of each other.

Tags

CCSS.4.G.A.3

Front

What is a line of symmetry?

Back

A line of symmetry is an imaginary line that divides a shape into two equal parts that are mirror images.

Tags

CCSS.4.G.A.3

Front

How many lines of symmetry does a square have?

Back

A square has 4 lines of symmetry.

Tags

CCSS.4.G.A.3

Front

How many lines of symmetry does a rectangle have?

Back

A rectangle has 2 lines of symmetry.

Tags

CCSS.4.G.A.3

Front

How many lines of symmetry does a circle have?

Back

A circle has an infinite number of lines of symmetry.

Tags

CCSS.4.G.A.3

Front

How many lines of symmetry does a triangle have?

Back

An equilateral triangle has 3 lines of symmetry, while an isosceles triangle has 1.

Tags

CCSS.4.G.A.3

Front

What shape has no lines of symmetry?

Back

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

Tags

CCSS.4.G.A.3

Front

Can a shape have more than one line of symmetry?

Back

Yes, some shapes can have multiple lines of symmetry, like squares and circles.

Tags

CCSS.4.G.A.3

Front

What is rotational symmetry?

Back

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

Tags

CCSS.HSG.CO.A.4

Front

How many degrees can a shape with rotational symmetry be rotated?

Back

It depends on the shape; for example, a square can be rotated 90 degrees, while a circle can be rotated any degree.

Tags

CCSS.HSG.CO.A.4