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  • Y9 Geometry Rules

Y9 Geometry Rules

Author:
Anton Coltham
Topic:
Geometry
Geometry Rules for Y9 (NZ)

  • Rule 1: Adjacent angles on a straight line

  • Rule 2: Angles around a point

  • Rule 3: Vertically Opposite Angles

  • Rule 4: Angles in a triangle

  • Rule 5: Base angles of isosceles triangle

  • Rule 6: Angles of an equilateral triangle

  • Rule 7 : Angles in a quadrilateral

  • Rule 8: Corresponding Angles on parallel lines

  • Rule 9: Alternate Angles on parallel lines

  • Rule 10 : Co-interior angles on parallel lines

Next
Rule 1: Adjacent angles on a straight line

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