Symmetry

Front

What is symmetry?

Back

Symmetry is when one shape becomes exactly like another if you flip, slide, or turn it.

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 identical parts.

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 is rotational symmetry?

Back

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

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.

Tags

CCSS.HSG.CO.A.4

Front

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

Back

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

Tags

CCSS.4.G.A.3

Front

What is the difference between reflective and rotational symmetry?

Back

Reflective symmetry involves a line dividing a shape into mirror images, while rotational symmetry involves turning the shape around a point.

Tags

CCSS.HSG.CO.A.4