---
title: "Lines of Symmetry"
description: "Learning video: The diagonal is not one! The halves don't match. How many lines of symmetry does a square have?"
canonical: "https://www.mathapex.app/en/math-stories/geometry/lines-of-symmetry/"
language: "en"
video: "https://www.mathapex.app/media/stories/videos/en/lines-of-symmetry.00710b4d.mp4"
duration: "PT29S"
---

# Lines of Symmetry

Learning video 52 · Geometry · Grade 4 · 0:29

## Read the story

A line of symmetry splits a shape into two matching halves.

A rectangle has 2: one up and down, one across.

The diagonal is not one! The halves don't match.

**How many lines of symmetry does a square have?**

## Answer and working

Correct! 4: up and down, across, and both diagonals.