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A Formula for Finding Angle between Two Planes 計算兩平面之交角的公式
Auteur :
Alex CHIK
Thème :
Plans
GeoGebra
Proof (partial)
dihedral angle formula.pdf
GeoGebra
Reference
1.
https://youtu.be/TRf6gax6viA
2.
http://whistleralley.com/polyhedra/derivations.htm
gMath 互動數學教室
http://www.gmath.hk
Nouvelles ressources
Isosceles Triangle: Quick Construction
Angles and Intersecting Lines: Quick Investigation
Linear Cross Section Exercise
Simplifying Radicals: Geometric Thin Slice
Construct a Square
Découvrir des ressources
Animation of a robot moving through three points
Onion Radial
Geogebra Assignment #3 Q3 (Ben Lee)
Rectangle + another angle
Ant Cube
Découvrir des Thèmes
Probabilité
Equations
Multiplication
Résumé Statistique
Géometrie