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Perpetual calendar
Author:
Jean David
GeoGebra
1) Find the principle of the calendar. 2) Explain the red month for leap years.
New Resources
Visualizing the Pythagorean Identity with Sine and Cosine
רישום חופשי
Untitled
Billard V5.2 and V6
Double Rodin Coil Style Torus
Discover Resources
Outer Billiards
Percents
Angle between two planes
Subtracting Fractions With UnLike Denominators Numerically طرح الكسور من مقامات مُختلفة عددياً
Napoleon's Triangle
ORS121 H1 Q2
Discover Topics
Kite
Linear Equations
Probability
Power Functions
Tree Diagrams