GeoGebra
ATC Triangle Centers
Circles Associated with Triangles
Constructing the Circumcircle
Constructing the Incircle
Constructing an Excircle
Constructing the Nine-Point Circle
The Circumcircle and the Nine-Point Circle
Triangles Associated with Other Triangles
The Cevian Triangle
The Pedal Triangle
The Wallace-Simson Line
Minimizing the Triangle Perimeter
Centers Associated with the Medial Triangle
The Spieker Center
The Nine-Point Center
A Triangle Cleaver
Cleavers and Angle Bisectors
Three Cleavers Concur
Centers Associated with the Incircle
The Gergonne Point
The Nagel Point
The Feuerbach Point
The Fermat Point
Minimizing the Sum of Distances
The Fermat Point Construction
The Orthocenter
Tracing the Orthocenter
The Orthocenter Locus
The Orthocentric Quartet
GeoGebra
ATC Triangle Centers
Author:
Ashley Moss
,
Steve Phelps
Table of Contents
Circles Associated with Triangles
Constructing the Circumcircle
Constructing the Incircle
Constructing an Excircle
Constructing the Nine-Point Circle
The Circumcircle and the Nine-Point Circle
Triangles Associated with Other Triangles
The Cevian Triangle
The Pedal Triangle
The Wallace-Simson Line
Minimizing the Triangle Perimeter
Centers Associated with the Medial Triangle
The Spieker Center
The Nine-Point Center
A Triangle Cleaver
Cleavers and Angle Bisectors
Three Cleavers Concur
Centers Associated with the Incircle
The Gergonne Point
The Nagel Point
The Feuerbach Point
The Fermat Point
Minimizing the Sum of Distances
The Fermat Point Construction
The Orthocenter
Tracing the Orthocenter
The Orthocenter Locus
The Orthocentric Quartet
New Resources
DYME 4.1 (Change challenge number)
Check the formula
DYME 4.2
IF2-03-P4b1-CYU5-RQ4 (Graph a horizontal stretch)
Baloiaren tiro parabolikoa
Discover Resources
Regular polygon with strings
Normal Probability Between Two Numbers
Opposite sides of parallelograms are congruent.
perpendicular line through a point
Approximating the Area of a Circle
Discover Topics
Bar Chart or Bar Graph
Equations
Normal Distribution
Multiplication
Pyramid
