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GeoGebra
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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)
more online resources
orthocentre coordinates
Centres of data / triangles
Next
Lines in a Triangle
New Resources
Quiz: Finding Average Rate of Change
alg2_05_05_01_slider_practice_flvs
alg2_05_05_04_applet_exp_fxn_flvs
Poorly Drawn Parallelograms 2
Construct a Conic
Discover Resources
Dilations Using a Slider for the Scale Factor
Angles of a Triangle
IMO-Logo
GoGeometry Action 1!
Angle
Discover Topics
Surface
Polygons
Combinatorics
Percentages
Quadrilaterals