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Triangle Tangle
Author:
Pierre Lacoste
GeoGebra
New Resources
Reflection = 180° Rotation about a Line
Triangle with 3 Right Angles
Equation of Locus - Parabola
Making New Year's resolutions for 2026
Pitfalls of Disk/Washer Method
Discover Resources
H Equilateral Triangle
Dream Pool project
exercise 6
₊Method of Lagrange multipliers. Relative positioning of "repulsive" movable points on a circle
Discover Topics
Optimization Problems
Bar Chart or Bar Graph
Right Triangles
Tangent Line or Tangent
Solids or 3D Shapes