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GeoGebra
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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
Roll Dice
Flip 5 Coins.
Basic Percent Exercises (V2)
Experiments with Transformations in the Plane
Basic Percent Exercises (V1)
Discover Resources
Transformations - Practice
Trig Function Art
Numerical Limit
สมการเชิงเส้น
GA8F
Discover Topics
Straight Lines
Scalene Triangles
Volume
Algebra
Solids or 3D Shapes