Lines of symmetry and point symmetry

MathematicsPlane GeometryAges 11–12

Choose a square, rectangle, rhombus, regular hexagon, or any quadrilateral, and the simulation finds and draws every line of symmetry (dashed red) and center of symmetry (red dot) of the shape. Drag a vertex to distort the shape and watch the lines and center disappear, or press 'Try folding' to see whether folding half the shape across a line lands exactly on the other half.