Draw lines of symmetry

line of symmetry divides a shape into two regions that are mirror images of each other across the line.

Learn with an example

Look at the shape.

To draw a line of symmetry, look for two halves of this shape that are mirror images of each other. Then, draw the line of symmetry between these halves.

Look at the shape.

To draw a line of symmetry, look for two halves of this shape that are mirror images of each other. Then, draw the line of symmetry between these halves.

Look at the shape.

To draw a line of symmetry, look for two halves of this V that are mirror images of each other.

Then, draw the line of symmetry between these halves.The right half of V is the mirror image of the left half. So, the vertical line that passes through the middle of V is a line of symmetry.

There are no other ways to split V so that the halves are mirror images of each other. So, this is the only line of symmetry.

let’s practice!