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Aristarchus' mistake
Author:
Malin Christersson
Topic:
Trigonometry
GeoGebra
New Resources
Napoleon's Theorem
Slope of a Straight Line: Run and Rise
Angles and Intersecting Lines: Quick Investigation
Piano. Keyboard.
A retro cityscape with mathematics
Discover Resources
Circle Theorems Arrowhead Rule
Graph of an Quadratic Equation
Sangaku - 3 circles and line
QED Midsegment Proof
Rock Paper Scissors Fire Water Air Sponge
Discover Topics
Angles
Poisson Distribution
Natural Numbers
Isosceles Triangles
Parallelogram