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спираль фибоначчи
Author:
Anna Borodulja
GeoGebra
New Resources
Experiments with Transformations in the Plane
International Day of Mathematics 2025
רישום חופשי
Flip 9 Coins
Roll 6d five times
Discover Resources
Tangent-Chord Angles
Euler Line
练习（点，斜率，直线）
พีระมิด