lines of symmetry

Front

What is a 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

How many lines of symmetry does a circle have?

Back

A circle has an infinite number of lines of symmetry.

Front

What is the line of symmetry for a square?

Back

A square has four lines of symmetry: two diagonals and two vertical/horizontal lines.

Front

Which letter of the alphabet has horizontal line symmetry?

Back

The letter 'H' has horizontal line symmetry.

Front

How many lines of symmetry does a rectangle have?

Back

A rectangle has two lines of symmetry: one vertical and one horizontal.

Front

What is the line of symmetry for an equilateral triangle?

Back

An equilateral triangle has three lines of symmetry, each passing through a vertex and the midpoint of the opposite side.

Front

Which shapes are always symmetrical?

Back

Regular polygons, such as squares and equilateral triangles, are always symmetrical.

Front

What is the relationship between lines of symmetry and congruence?

Back

Shapes that are divided by a line of symmetry are congruent on either side of the line.

Front

Can a shape have no lines of symmetry?

Back

Yes, some shapes, like a scalene triangle, have no lines of symmetry.

Front

What is vertical line symmetry?

Back

Vertical line symmetry occurs when a shape can be divided into two identical halves by a vertical line.