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Symmetry | O Level Mathematics 4024 & IGCSE Mathematics 0580 | Detailed Free Notes To Score An A Star (A*)

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  • Line of symmetry simple concept
    • If you fold the shape on this line, it must come perfectly on the other half.
  • Rotational Symmetry
    • How many times, while rotating the shape 360 degree, will we see the same shape again and again.
    • No shape has a rotational symmetry of zero
    • At least 1. because when be turn it around completely, it will come back on the same shape.
  • Line of symmetry
    • Square 4
    • Rectangle 2
    • Circle
    • Semi-Circle 1
    • Rhombus 2
    • Kite 1
    • Trapezium 0
    • Parallelogram 0
    • Isosceles Triangle
    • Equilateral Triangle
  • Rotational Symmetry
    • Square 4
    • Rectangle  2
    • Circle
    • Semi-Circle
    • Rhombus 2
    • Kite 1
    • Trapezium 0
    • Parallelogram 2
    • Isosceles Triangle
    • Equilateral Triangle 3
  • The part regarding circles has been covered in circle properties
  • Prism symmetry properties
    • Any cross section taken from the prism which is parallel to the base is equal to each other and has the same shape/ size.
  • Pyramid symmetry properties
    • Any cross section taken from the pyramid that is parallel to the base has the same shape, but is smaller in size.
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