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selection task 1
Author:
Arthur Lee
找出平行線，把它們移到右邊。
GeoGebra
New Resources
apec
Row and Column Views of Systems of Linear Equations
Sum of Squares: Proof without Words
Rule of Sarrus - Determinant of a 3×3 Matrix
Fractal Tétraèdre. Dilatation -1/2 centre triangles
Discover Resources
Ângulo Entre Duas Retas
FR 6 Logs and Exp Functions
Μελέτη Συνάρτησης (ΚΚ)
vecteurs
Pythagorean Theorem Proof 3-4-5
Discover Topics
Equilateral Triangles
Cone
Geometry
Logic
Planes