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Recognize a line of symmetry for a two-dimensional figure as a line across the figure such that the figure can be folded along the line into matching parts. Identify line-symmetric figures and draw lines of symmetry.
Free lines of symmetry GCSE maths revision guide, including step by step examples, exam questions and free worksheet.
Free Pre-Algebra, Algebra, Trigonometry, Calculus, Geometry, Statistics and Chemistry calculators step-by-step.
Discover over 4 free and ready-to-use GeoGebra resources for grades 4-8 for exploring & practicing symmetry in figures: identify lines & create symmetrical shapes.
How to identify line symmetry, reflection symmetry and plane symmetry, Grade 9, in video lessons with examples and step-by-step solutions.
Aug 22, 2021 · A line of symmetry is a line that cuts a shape in half. The shape will look the same on both sides of the line of symmetry. We can mark lines of symmetry using a dashed line drawn on the shape. We can find lines of symmetry using a mirror.
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Mathematically, a line of symmetry is a line of reflection that maps any point on the figure back to the figure. The line that cuts through the major axis of the ellipse above is a line of symmetry. When A and B are reflected across it, they are mapped to A' and B', also on the ellipse.