GeoGebra
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GeoGebra
รูปสามมิติ
Author:
Sompong Koonkor
Discover Resources
Equilateral Triangle
vertical angles
Lesson 2 Perpendicular Bisector
Similar Triangles
Standing Waves
New Resources
Leslie-Matrix
Arches (Parabola, Catenary, Circular)
Centres in a Triangle
Matrix-Powers
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