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ตรีโกณมิติ
Author:
KruBoom-Jularat Thongaram
GeoGebra
New Resources
"Compressed" Astroid as Envelope
Rotating Points (Optical Illusion)
Angles and Intersecting Lines: Quick Investigation
van Aubel's Theorem
History of Maths
Discover Resources
lenghtarc
Missing point on a circle
Geogebra 5
Parallelogram Properties
The slope of the line which is Parallel or Perpendicular to the line through two points
Discover Topics
Step Functions
Cylinder
Curve Sketching
General Quadrilateral
Vectors 2D (Two-Dimensional)