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GeoGebra
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G9 Ch.9 Lines and Centres of a Triangle
Centre of a Triangle
G9 Ch.9 Lines and Centres of a Triangle
Author:
Ivan Chan
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Centre of a Triangle
New Resources
Average Rate of Change: Graph a Function (2)
Icosahedron
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Icosahedron1
Poorly Drawn Parallelograms 3
Discover Resources
kite
Triangle Angle Sum
Quadratic point text
hexagon
Distance in the Coordinate Plane: Exploration
Discover Topics
Equilateral Triangles
Rectangle
Tree Diagrams
Arithmetic Operations
Upper and Lower Sum or Riemann Sum