Google Classroom
Google Classroom
GeoGebra
GeoGebra Classroom
Sign in
Search
Google Classroom
Google Classroom
GeoGebra
GeoGebra Classroom
GeoGebra
Home
Resources
Profile
Classroom
App Downloads
A Formula for Finding Angle between Two Planes 計算兩平面之交角的公式
Author:
Alex CHIK
Topic:
Planes
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
New Resources
Prism Drawn in 1-Point Perspective
Shells
apec
Locus Related to Descartes' Folium
Reflection = 180° Rotation about a Line
Discover Resources
TMC 2007 Q12
Explore the Sine Function
y=x^2 di rotasikan ke (1,3) dan sudut 30 derajat
Components of a Line
Parallelepiped Part 4
Discover Topics
Median Line
Statistical Characteristics
Constructions
Conic Sections
Percentages
