Line Symmetry

Line symmetry is the geometric property where one half of a figure is the mirror image of the other. Every regular polygon has as many lines of symmetry as it has sides: a square has 4, a regular hexagon has 6, an equilateral triangle has 3. This pattern is a beautiful mathematical discovery accessible through investigation. First Peoples art forms — birchbark biting, regalia borders, canoe designs — use bilateral symmetry as a fundamental design principle.