4th Grade - Lines of 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.

Front

What is a line of symmetry?

Back

A line of symmetry is an imaginary line that divides a shape into two identical parts.

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

How many lines of symmetry does a rectangle have?

Back

A rectangle has 2 lines of symmetry.

Front

Is a triangle always symmetric?

Back

No, not all triangles are symmetric. Only certain types, like equilateral triangles, have symmetry.

Front

What type of triangle has 3 lines of symmetry?

Back

An equilateral triangle has 3 lines of symmetry.

Front

Can a shape be symmetric if it has no lines of symmetry?

Back

No, if a shape has no lines of symmetry, it is not symmetric.

Front

What is an example of a shape that is not symmetric?

Back

An irregular pentagon is an example of a shape that is not symmetric.

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.