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Outline
Special Lines and Centres of triangles
Empirical Explorations
Soft Construction Exploration
Special Lines
Miscellaneous
3D
More Online Resources
Special Lines and Centres of triangles
Author:
GeoGebra Institute of Hong Kong
,
Arthur Lee
Topic:
Geometry
Special Lines and Centres of Triangles
Table of Contents
Empirical Explorations
Lines in a Triangle
Centres in a Triangle
Soft Construction Exploration
Circumcircle of a triangle (Soft Construction)
Incircle of a triangle
Trisecting a Triangle
Special Lines
triangle fold
bisector of a triangle
River excursion
Miscellaneous
Special Lines & Centres of Triangles 三角形的特殊線和中心
Quiz on Special Lines in Triangles 三角形內的特殊線：測驗
Quiz on Centres of Triangles 三角形的中心：測驗
perpendicular bisectors
where perpendicular bisectors intersect
perpendicular bisectors and angles
6 mid-points
3D
dumpling model
Tetrahedron Net (general)
Centroid of tetrahedron (I)
Centroid of tetrahedron (II)
Circumcenter of tetrahedron
Incenter of tetrahedron
Making of tetrahedron with given insphere
More Online Resources
orthocentre coordinates
Centres of data / triangles
introduce Voronoi diagram in Desmos
Next
Lines in a Triangle
New Resources
seo tool
רישום חופשי
Exploding cube
Positive and Negative Space
Free fall
Discover Resources
Geometry in Coordinate Plane
Classifying Quadrilaterals
Unit 2 Construction Task Step 1A_ Name
Pringles Modeling in GeoGebra 3D: Quick Demo
Discover Topics
Surface
Fractions
Exponential Functions
Upper and Lower Sum or Riemann Sum
Interest Calculation
