Google Classroom
GeoGebra
GeoGebra Classroom
Sign in
Search
Google Classroom
GeoGebra
GeoGebra Classroom
GeoGebra
Home
Resources
Profile
Classroom
App Downloads
F1 triangle angle sum
Author:
Ngan Hok Hei
通過移動三角形的頂點﹐同學可以發現 不論是鈍角三角形﹐銳角三角形還是任何類形三角形, 三角形的內角總和仍然是180度。
GeoGebra
New Resources
Ellipse and Equation
Cup Modeling Project (V2): Building Surfaces of Revolution
WC 2018
Continuity at a Point
Trammel of Archimedes
Discover Resources
Perpendicular Bisector Theorem
Curvas de Nível
Sangaku (GEOM-10)
สมการเชิงเส้น
Discover Topics
Pythagoras or Pythagorean Theorem
Scalene Triangles
Power Functions
Coordinates
Arithmetic Mean